Professional Makeup For Beginners
Soy proteins have also found applications in the cosmetics industry. Lipid vesicles, commonly called liposomes, have an application in skin treatments as natural membranes of the skin and liposome both have the same bilayer structure. A liposome formulation prepared from soybean phospholipids (lecithin) has been shown to be very effective in moisturizing the skin (Betz et al., 2005). Bowman-Birk factor, present in the seed coat as a protease inhibitor, has cosmeceutical properties. A soy moisturizer rich in Bowman-Birk inhibitor is being marketed for improving skin tone, skin pigmentation and other photo-ageing attributes. Soy Bowman-Birk factor inhibits melanosome phagocytosis by keratinocytes via protease-activated receptor 2 (Wallo et al., 2007). It also inhibits the ornithine carboxylase required for hair growth on the skin.
Many industries are involved, such as forestry, agriculture, chemicals, food, flavor, beverage, pharmaceutical, cosmetics, and fragrance. The plant raw materials are roots, rhizomes, bulbs, leaves, stems, barks, wood, flowers, fruits, and seeds. These yield gums, resins, essential (volatile) oils, fixed oils, waxes, juices, extracts, and spices for medicinal and aromatic purposes. All these commodities are traded worldwide. A dealer's market report for an item may say drought in the country of origin has forced up prices.
Lactoserum waste water by using dynamic membranes, 85-93 of the protein can be recovered. The lactoserum protein is a natural surface active agent and can be used for cosmetics. Lactoserum protein is easily digested and assimilated and has a high metabolic rate and biological value. Lactoserum waste water can be used for the extraction of oligosaccharides, which can promote intestinal peristaltics and ease constipation. It also promotes the growth of Bifidobacterium and improves the structure of the intestinal bacterial flora.
Endoreduplication can be affected by a number of physiological and environmental factors. In a cross between two inbred lines, the endoreduplication pattern of the endosperm in the F1 generation generally resembles that of the maternal parent (Kowles et al. 1997 Dilkes et al. 2002). This maternal effect could be due to gene dosage, in that two copies of the maternal and one copy of the paternal genome contribute to the genetic makeup of the endosperm. Alterations to this 2 1 ratio cause deleterious changes during development of the endosperm (LeBlanc et al. 2002). A maternal excess results in precocious endoreduplication and a shortened mitotic phase, although it does not alter the degree of endoreduplication. Excess of the paternal genome, on the other hand, delays entry into endoreduplication, not by prolonging the mitosis phase, but by causing an extended mitotic hiatus prior to the switch to endoreduplication. Also, DNA amplification is severely reduced in all cells that are...
Nowadays, lavender is used mainly as the essential oil in manufactured products like cosmetics, perfumes, soaps etc, but there has been a general reversion to the use of the dried lavender plant itself in the homespun industry of making products like herbal pillows and lavender bags (see Chapter 18).
It is well known that endoreduplication in maize endosperm is under maternal control, in that the endoreduplication pattern in the offspring of a cross between two inbred lines generally resembles that of the maternal parent (Kowles et al. 1997 Dilkes et al. 2002). It is possible that differential gene dosage contributes to this maternal effect , as the genetic makeup of the endosperm involves two maternal copies and one paternal copy of the genome. An alteration to this 2 1 ratio is deleterious for the development of the endosperm. A maternal excess causes a shortened mitotic phase and a precocious endoreduplication period (but does not affect the extent of endoreduplication). Conversely, excess of the paternal genome delays endo-reduplication through an apparent extended mitotic hiatus prior to the switch to endoreduplication, and it also inhibits DNA amplification in all endo-reduplicating cells (Leblanc et al. 2002).
Carotenoids are a class of hydrocarbons (carotenes) and their oxygenated derivatives (xantho-phylls). Carotenoids play an important role in the transfer of energy to chlorophylls, in addition to the photoprotection of chlorophylls in photosynthetic organisms. Paprika and paparika oleoresins are used as natural colour additives in a wide variety of foods, drugs and cosmetics. Capsaicinoids and carotenoids are found in the oily fraction of several varieties of chilli peppers. The carotenoid colourants are normally commercialized as a dried paprika powder or as a main
Maintain an optimal diet, including varied sources of nutrition. Avoid environmental chemicals at work, home, and in food sources. Do not microwave in or with any plastic. Avoid parabens and methylparabens in makeup and hygiene items. Eliminate or avoid caffeine prior to conception.
Arsenic (As) is a naturally occurring toxic metal, and its presence in food represents a potential risk to the health of both humans and animals (Al Rmalli et al. 2005). Inorganic arsenic occurs naturally in soil, air, and water in addition to anthropogenic sources, such as mining, agriculture, and nonagricultural activities. Arsenic is used industrially in the manufacture of numerous products, including glass, ceramics, electronics, cosmetics, and fireworks (Smith et al. 2009). In the latter half of the twentieth century, As was also widely used in pesticide and herbicide formulations and in wood preservation, although such use is now declining (Xie et al. 2009). More than 300 As minerals are known to occur in nature. Of these, approximately 60 are arsenates, 20 are sulfides and sulfosalts, 10 are oxides, and the rest are arsenites, arsenides, native elements, and metal alloys (Bowell and Parshley 2001). The most important primary As-bearing minerals are those in which As occurs as...
Cyanobacteria can be exposed to changes in their typical growth conditions that modify both the number and characteristics of the phycobilisome. As already noted, the expression of the genes encoding for phycobilisome components can be altered by external environmental changes within a short period of time. However, more long erm changes that require changes in the phycobilisome makeup may occur. One such change is the response of cyanobacteria to the lack of specific nutrients, especially nitrogen and sulfur. Under these conditions, the cyanobacterial cells change color from blue- green to yellow-green in a process known as chlorosis, or bleaching 81 . Using spectroscopy, and other techniques, it was found that the bleaching occurs within a few hours of the onset of nutrient starvation and was a result of the loss of the phycobilisome in an ordered fashion 55 . It has been proposed that the disassembly of the phycobilisome can have two beneficial roles. During starvation the cellular...
The skin is susceptible to many diseases and disorders. Skin disorders may be external manifestations of systemic illness. One example is the butterfly rash of systemic lupus erythematosus. Other skin conditions reflect topical exposure reactions, arising from localized responses. Skin disorders have a wide range of etiologies, ranging from infection (e.g., scabies, ringworm) to allergy (e.g., to drugs, foods, and cosmetics) to nutritional deficiency (e.g., vitamin A or essential fatty acid EFA deficiency may lead to follicular hyperkeratosis). Other causes of skin outbreaks include reactions to bites and stings and reactions to plants such as poison ivy or poison oak. This chapter examines applications of natural remedies for treating several common skin conditions.
The application of QTL mapping provided the means to genetically dissect tolerance traits into discrete QTLs that can then be pyramided into high-yielding varieties using marker-assisted selection (MAS). Marker-assisted selection is the use of molecular markers linked to useful traits to select individuals with desirable genetic makeup during the variety development process. It provides a dramatic improvement in the efficiency with which breeders can select plants with desirable combination of genes. DNA markers should enhance the recovery rate of the isogenic recurrent genome after hybridization and facilitate the intro-gression of quantitative trait loci necessary to increase stress tolerance (Fig. 4.4). Molecular marker techniques were used successfully to transfer alleles of interest from wild relatives into commercial cultivars (Tanksley and McCouch 1997). Use of permanent mapping populations, such as recombinant inbred lines (RILs) or chromosomal segment substitution lines...
Leafy spurge has a relatively complex genetic makeup (Schulz- Schaeffer and Gerhardt 1987, 1989). The chromosome number of leafy spurge varies from 2n 48 to 2n 60, and a hexaploid (2n 60) is most prevalent (CABI 2004b). The hexaploid species of leafy spurge contains 2,069Mbp per haploid genome.
The makeup of humid compared to drier-growing epiphyte communities is broad species representing diverse families often coexist, but spatial biases are common. Ferns are inordinately common close to the ground everywhere but in the wettest sites (Table 7.2). Only occasional genera (e.g., Pyr-rosia, some Polypodium) occur where exposure is extreme or rainfall at all seasonal. Aroids, gesneriads, and many other dicots follow similar distributions because they also tend to be shade-tolerant, inefficient water users. Atmospheric Tillandsia, in contrast, cannot survive either deep shade or abundant moisture. Orchids often dominate the upper canopies of multi-stratal forest, but numerous species also adjust to dim light at high humidity. Bromeliaceae as a whole are versatile, and Peperomia, although predominantly mesic, contains a few stress-tolerant epiphytes as well.
Temperate-forest understory herbs sometimes alter the light responses of their foliage throughout the growing season successive, or even the same, leaves switch from high- to low-light-adapted photosynthesis as overhanging branches leaf out in late spring. As yet no similar mechanisms have been identified in epiphytes, but they certainly seem probable. After all, many vining hemiepiphytes show dramatic shifts in leaf size, shape, and, more than likely, photosynthetic properties as well. Hemiepiphytic Monstera dubia produces only thin, small, sessile foliage appressed against the substratum during early stages of its climb. Once exposure reaches some threshold level, much larger petiolate organs, held well above the trunk surface, develop. Some Marcgraviaceae exhibit similar juvenile morphology on the main axis but, in the upper canopy, generate freely suspended, determinate, axillary branches equipped with robust leaves. Photomorphogenesis that allows vines such as those of Monstera...
Anacardiaceae SC SE North America (S Mexico to Panama, West Indies) South America (tropics) SC SE Eurasia (India, Malaysia) int M SE Africa and NC Oceania (Mariana Islands) M L E D hel mes- xer acid- neut dr (bark or leaves decoction against anemia, burns, diabete, diarrhea, malaria, nervous disorders, plaque, thrush cosmetics leaves infusion aphrodisiac pericarp juice against acne, constipation,
Recent developments in techniques of gene manipulation and the recognition of the role of selected genes which could be considered to be to the advantage of a plant lacking them, have led to the implantation of such genes, e.g. those which could resist disease or pest attack, in crop plants. Such techniques are known as Gene Modification (GM). The ability to alter the genetic makeup of plants by exposure to radiation has long been known and the subject of experimentation. However, most radiation-induced changes - man-made mutation - are deleterious. Genetic modification is a more precise and predictable practice. The aim of GM modification is said to benefit and enhance crop production. It is, however, a very controversial issue, not the least as the long-term impact on the environment and ecosystem is unknown.
The largest single chemical component of P. lobata rhizomes appears to be coumarin. This powerful anti-coagulant is the primary ingredient of human anti-coagulant drugs and also the primary ingredient of rat poison. Coumarin is also used as a newly mown hay scent in cheese, cosmetics and perfume and as a beige to tan and yellow dye, including as a laser marker dye. Among flavors found in P. lobata, the major component appears to be palmitate.
Lamiaceae) are mainly grown for their essential oils, which are used in perfumery, cosmetics, food processing and nowadays also in 'aromatherapy' products. The dried flowers have also been used from time immemorial in pillows, sachets etc. for promoting sleep and relaxation. Numerous lavender plants are also sold as ornamental plants for the garden these include L. latifolia, L. pinnata, L. lanata, L. dentata and L. stoechas and their numerous cultivars.
Scant attention has been given to the actual chemical composition of the EOs used and even the exact botanical origin type of the oil was ignored, for example, there are many main commercial types of 'lavender oil', all differing in both genus and composition There are a large number of chemotypes of Lavandula EOs, and of these, often vague chemotypes are preferentially used by some aromatherapists (Lis-Balchin, 1999). The danger here is that little is known about them, the composition is very variable and no toxicity tests have been carried out on most of them. Only commercially-used EOs have been tested for toxicity, as these are mainly used in the food and cosmetics industries however large-scale admixing, deterpenation, dilution and adulteration also occurs giving rise to a multitude of different lavender oils.
Given the economic importance of the genera Meloidogyne and Heterodera and the fact that parasitism is relatively easy to study because infective stages of these nematodes are sedentary and their eggs are aggregated, it is not surprising that most of the research on specific suppressiveness has focused on this group of nematodes. Obligate parasites of females (e.g. Pasteuria penetrans and Nematophthora gynophila) and saprophytic fungi with a relatively specialised capacity to utilise nematode eggs as a food source (e.g. Pochonia chlamydosporia and Brachyphoris oviparasitica) sometimes parasitise a large proportion of the females or eggs, but future research needs to focus on why these suppressive forces are active in some situations and not others. The factors most likely to be involved include the continuity of supply of host nematodes particular soil physical, chemical or environmental conditions soil organic matter status and the genetic makeup of the suppressive agent.
Processes similar to those that fractionate the stable isotopes of carbon and hydrogen during photosynthesis also provide opportunity to track another important element through ecosystems. According to Schulze et al. (1991), fractionation during transfers between trophic levels enriches the 15N content of biomass 3-5 o. Midgiey and Stock (1998) took advantage of this phenomenon to demonstrate carnivory in Roridula gorgonias, and the same approach could help determine inputs from prey and ants to phyto-telm and myrmecophytic bromeliads. Stewart et al. (1995) concluded from the isotopic makeup of the N distributed among forest flora at two sites in Brazil that the assayed epiphytes more than the supporting trees rely on the atmosphere, perhaps partly via nitrogen fixation, for this key nutrient. Specifically, heavy N was relatively depleted in most of the assayed epiphy
Carnivorous plants produce traps often equipped with lures and digestive secretions in order to supplement the typically meager supplies of mineral nutrients present in soils where these plants grow. Impoverished substrates probably favored Darwinian modification of foliage to secure inorganic nutrients in addition to photons, but this change brought complications. As the costs of construction and operation increased while the leaf evolved the qualities necessary for carnivory, its photosynthetic capacity diminished. Consequently, the power to amortize investments in an organ that now provides two vital, but not particularly compatible, plant services also diminished (Givnish et al. 1984). The Givnish et al. model essentially explains the evolution of carnivory using the same economic paradigm described earlier to rationalize the relationships among leaf longevity, chemical makeup and cost, and capacity for photosynthesis.
Cycloinulohexaose can be derivatized to additional structures of interest (Figure 5.8), e.g., fructo-sylated branched cyclic inulooligosaccharides (Kushibe and Morimoto, 1994), or cross-linked to give a solid electrolyte (Shimofusachi, 1998). When esterified to fatty, benzoic, or other acids, cycloinulohexaose can potentially be used as an oily base, oily gelation agent, or film-forming agent for cosmetics (Shimizu and Suzuki, 1996). Modification of cycloinulohexaose via sulfony-lation of the primary hydroxyl with 2-naphthalenesulfonyl chloride yields three possible isomers (30 to 32) (Atsumi et al., 1994). Subsequent treatment with thiophenol Cs2CO3 yields the sulfite of each isomer (33 to 35). Cycloinulohexaose may also be permethylated, peracetylated, or per-benzoylated (Takai et al., 1994).
The oil is also reputed to have insect-repellent properties it is a sedative and relaxant and is useful in treating worms, particularly roundworm, and infections of the genitourinary system. It is also used as a flavouring in cooking and as a fragrance and freshening agent in soaps, cosmetics, detergents and perfumes (Sellar 1992 Lawless 1995).
One of the most interesting characteristics of seeds is their wide variability in length of life, ranging from a few days to several decades or even centuries. It was reported, for example, that seeds of the arctic tundra lupine that had been buried for at least 10,000 years in frozen silt germinated readily in the laboratory (Porsild et al., 1967). Seeds of albizia retained viability for at least 150 years and those of Hovea sp. for 105 years (Osborne, 1980). Seeds of some forest trees of the temperate zone can be stored for a long time. For example, viability of slash and shortleaf pine seeds was 66 and 25 , respectively, after 50 years of cold storage (Barnett and Vozzo, 1986). There was some loss of vigor during the storage period but probably not enough to influence the genetic makeup of the next generation of plants.
Cosmetics of rare fatty acids, which are used for industrial purposes (Table 15.4). Oil from palm kernels has a high content of the short-chain lauric acid (12 0), which is used for the production of detergents and cosmetics. Large plantations of oil palms in Southeast Asia ensure its supply to the oleochemical industry. Linolenic acid from European flax seed is used for the production of paints. Ricinoleic acid, a rare fatty acid that comprises a hydroxyl group at the C-12-position, accounts for about 90 of the fatty acids in castor oil. It is used in industry as a lubricant and as a surface protectant. Erucic acid is used for similar purposes. Earlier varieties of rape seed had erucic acid in their triacylglycerols, and for this reason rape seed oil was then of inferior value for human nutrition. About 40 years ago, successful crossings led to a breakthrough in the breeding of rape seed free of erucic acid, with the result that rape seed oil is now highly suitable for human...
Plant isoprenoids (also known as terpenoids) are important commercially, for example as aroma substances for food, beverages, and cosmetics, as vitamins (A, D, and E), natural insecticides (e.g., pyrethrin), solvents (e.g., turpentine), and as rubber and gutta-percha. The plant isoprenoids also comprise important natural compounds, which are utilized as pharmaceuticals or their precursors. Investigations are in progress to increase the ability of plants to synthesize isoprenoids by genetic engineering.
The main disadvantage of asexual reproduction is lack of genetic variation. For example, a disease or pest that has a large effect on one individual may be able to quickly infect all other individuals that share the same exact genetic makeup. In the long run, asexual reproduction may often be an evolutionary dead-end because plants that only reproduce asexually cannot recombine genes to produce new genetic variants. see also Propoga-tion Reproduction, Sexual Stems Tissue Culture.
Aluminum, arsenic, cadmium, lead, mercury, nickel, and other heavy metals abound in the human environment, where they are found in pesticides, cooking utensils, paint, tin cans, solder, cigarettes, dental fillings, contaminated fish, some cosmetics and antacids, and industrial products and by-products. Battery makers, gas station attendants, agricultural workers, printers, jewelers, and dentists, for example, face increased heavy-metal exposure risks.
Processing chamomile substance using the wet method has been performed since 1976. From 1995 it was calculated with essential changes in the production program via the introduction of new technologies for chamomile processing into the form of extracts, which can be used in cosmetics using the alcohol method and water-alcohol method and their granulation into instant tea. It was verified in the pilot plant in 1985 15 .
Vegetative, or clonal, propagation is the very basis of the tree fruit industry. For instance, 'Golden Delicious' apple trees found the world over have as their parent the single tree found on the Mullins farm in Clay County, West Virginia. These trees have been propagated by budding or grafting onto a desired rootstock and have the same genetic makeup (excluding bud sports or mutations) as the parent tree. This is true of every cultivar of temperate tree fruit. Other methods of propagation, including cuttings, layering, and tissue culture, may also be used to produce clonal rootstocks or self-rooted trees. Sexual propagation through seeds is used primarily for the production of rootstocks.
Tea tree oil is a natural product, has a broad spectrum of activity and is environmentally safe with a long history of use. It has excellent antiseptic and wound cleansing properties and a low incidence of skin irritation. These features make it a versatile ingredient in pharmaceuticals, cosmetics, toiletries, pet care and household sanitation.
Plant prospecting is the seeking out of plants for the development of new foods, prescription drugs, herbal dietary supplements, flavors and fragrances, cosmetics, industrial materials, pesticides, and other profitable products. Plant prospecting includes the selection and collection of plants from terrestrial, marine, and other aquatic ecosystems by expeditions to diverse areas of the world, such as tropical and temperate rain forests as well as arid and semiarid lands in Latin America, Africa, Australia, and Asia.
On every continent, in many countries, new cosmetics and personal care products containing Australian tea tree oil (oil of Melaleuca alternifolia) are being launched at an ever increasing rate. The reason for this is that tea tree oil is not only natural, but is one of the few active ingredients that really works. It is a proven natural antiseptic with broad spectrum activity, effective against a wide range of gram positive and gram negative bacteria, yeast, moulds and fungi. At concentrations of 5 and more, it is used therapeutically world wide for antiseptic, antifungal and acne treatment. At lower concentrations, tea tree oil adds efficacy to a wide range of cosmetics and personal care products products for use from head to toe, and from baby products to treatments for aged and damaged skin. The germicidal and anti-inflammatory properties, along with excellent solvency, dermal penetration and green image, form the basis for use of tea tree oil in cosmetics and personal care...
Pharmaceutical drugs, cosmetics, detergents pesticides and herbicides. Many of these chemicals may adhere to the outer wall of pollen and spores when airborne, as a result of the use of aerosol sprays. It is when many such aerosol sprays are inhaled together with allergenic pollens and spores, that atopic persons develop allergic reactions. Many airborne pollen grains on contact with fine mist droplets may absorb water, swell and burst, releasing large numbers of allergenic particles, which add to the allergen load of the air.
Aloes require two or three years standing before they yield their latex. In Africa the latex is collected from the wild plants in the case of aloe plantations the drug is collected in April July. Aloe latex ( aloe) contains mainly anthraquinones, cathartic compounds useful in constipation. It is totally different from the aloe gel ( aloe vera), a colourless gelatin obtained from the central portion of aloe leaf. The mucilaginous parenchyma tissue is excised from fresh leaves and immediately utilised for pharmaceutical preparations or lyophilized and kept dry until use. During extraction of the gel it is practically impossible to prevent contamination by the latex as the leaves are cut. On the other hand in intact leaves, anthraquinones may diffuse into gel from the bundle sheath cells. To reduce such contamination the starting material must be from varieties of Aloe with a reduced anthraquinone content. Aloe gel is sensitive to heat and light and can quickly deteriorate when exposed...
The main usage of Geranium species is in herbal medicine, whilst that of the Pelargonium-derived Geranium oil is in perfumery, cosmetics and aromatherapy products. The production of commercial Geranium oil, from several Pelargonium cultivars, is now mainly in Reunion, Egypt and China however the true sales of Geranium oil are greatly in excess of that derived from plants, due to the ever-increasing production of synthetic and 'nature-identical' Geranium oil.
All plant cell membranes share the same basic structure but differ in the makeup of specific components. All membranes also share the important property of semi-impermeability. Small molecules such as water move readily across the membrane, but larger molecules can move only if the appropriate integral proteins are present.
Esters of polysaccharides such as inulin have a diverse range of applications depending upon the chain length of the carbohydrate portion and the esterified component. Inulin esters (Figure 5.5) can be formed by reaction with acid chlorides or with anhydrides of certain carboxylic acids in which the introduced alkyl chain is typically from C12 to C22 (3) altering the compound's surface tension. The products produced can be varied by altering the length of the alkyl chain or degree of substitution, giving a diverse range of properties. Those with short chain lengths and low degrees of substitution decrease surface tension and may be used as nonionic surfactants, binders in paints, and softeners. With higher degrees of substitution they can be used as plasticizers (Bognolo, 1997). With longer alkyl chains, inulin esters are useful as textile sizing agents, film and fiber thickeners, and polymeric surfactants in detergents or emulsifiers in cosmetics (Ehrhardt et al., 1997 Rogge and...
Ground jojoba seeds have long been used by Indians for shampoo and medicine. These days, the seed oil (actually a liquid wax) is considered a valuable substitute for oil from the endangered sperm whale. A variety of shampoos, cosmetics, soaps, lubricants, and pharmaceuticals contain jojoba oil. The demand is great enough that jojoba plantations have sprung up in western Arizona and southeastern California, typically in broad, silty valleys where planting and harvesting can be readily mechanized. In the wild, jojoba grows on rocky canyon slopes and along gravelly washes in southern California and Arizona.
Inulin etherification products have utility in cosmetics or pharmaceuticals as carriers for water-insoluble substances or to stabilize aqueous solutions of compounds with low water solubility. They may also be used as emulsifiers or as an additive in textiles and paper and as softeners of thermoplastic polymers (Kunz and Begli, 1995).
Wormwood is sometimes grown as an ornamental (Gabriel, 1979) and when dried, also used in flower arrangements. Culinary uses are limited because of the very bitter flavour of the plant. Tender foliage and non-woody top parts are used either fresh or dried as seasoning usually with boiled or roasted fatty meats, improving flavour as well as making them more digestible (Kybal, 1980). The essential oil extracted from wormwood has very limited uses in the field of fragrance and cosmetics (Heath, 1977) and in some external analgesics (Lawrence, 1977). Extracts are nowadays taken rarely for medicinal purposes, and then only for digestive complaints. More recently, interest has focused on potential medicinal benefits from individual and groups of compounds (Perez-Souto, 1992), rather than crude extracts from the plant (Hernandez et al., 1990). Wormwood is still used in small quantitites as a flavouring agent in alcoholic beverages (Martindale, 1978), such as absinthe, bitters, tonics,...
(female part) of the same flower or with the stigma of another flower on the same individual. Self-pollination does not allow much modification in the genetic makeup of the plant since the seeds produced by self-pollination create plants essentially identical to the individual producing the seed. A plant population that has all individuals identical in form, size, and growth requirements has little possibility of modifications to allow for change in its environment.
Oil quality consists of fatty acid composition. There are five predominant fatty acids in soybean oil palmitic (C16 0), stearic (C18 0), oleic (C18 1), linoleic (C18 2) and linolenic (C18 3) acids (Wilson, 2004). Depending upon the use of the soybean oil, different concentrations of a particular fatty acid are desirable. The higher the number of carbon bonds, the greater the level of unsaturation, indicating that the oil is more reactive. It is known from past research that saturated and polyunsaturated fatty acids are not desirable for human consumption because they become rancid in a short time. Increases in oleic acid and decreases in linolenic acid make the oil better for human consumption. Increases in saturated fatty acids may improve applications of soybean oil such as in cosmetics. The fatty acid concentration can be manipulated in a breeding programme if the genetics of the trait are well known and desired sources of germplasm are available. It is known that fatty acid...
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