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Tropical Oils: Nutritional And Scientific Issues.

C. Elson
Published 1992 · Biology, Medicine

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Individually and in combination with other oils, the tropical oils impart into manufactured foods functional properties that appeal to consumers. The use of and/or labeling in the ingredient lists give the impression that these oils are used extensively in commercially processed foods. The estimated daily intake of tropical oils by adult males is slightly more than one fourth of a tablespoon (3.8 g), 75% of which consists of saturated fatty acids. Dietary fats containing saturated fatty acids at the beta-position tend to raise plasma total and LDL-cholesterol, which, of course, contribute to atherosclerosis and coronary heart disease. Health professionals express concern that consumers who choose foods containing tropical oils unknowingly increase their intake of saturated fatty acids. The saturated fatty acid-rich tropical oils, coconut oil, hydrogenated coconut oil, and palm kernel oil, raise cholesterol levels; studies demonstrating this effect are often confounded by a developing essential fatty acid deficiency. Palm oil, an essential fatty acid-sufficient tropical oil, raises plasma cholesterol only when an excess of cholesterol is presented in the diet. The failure of palm oil to elevate blood cholesterol as predicted by the regression equations developed by Keys et al. and Hegsted et al. might be due to the dominant alpha-position location of its constituent saturated fatty acids. If so, the substitution of interesterified artificial fats for palm oil in food formulations, a recommendation of some health professionals, has the potential of raising cholesterol levels. A second rationale addresses prospective roles minor constituents of palm oil might play in health maintenance. This rationale is founded on the following observations. Dietary palm oil does not raise plasma cholesterol. Single fat studies suggests that oils richer in polyunsaturated fatty acid content tend to decrease thrombus formation. Anomalously, palm oil differs from other of the more saturated fats in tending to decrease thrombus formation. Finally, in studies comparing palm oil with other fats and oils, experimental carcinogenesis is enhanced both by vegetable oils richer in linoleic acid content and by more highly saturated animal fats. The carotenoid constituents of red palm oil are potent dietary anticarcinogens. A second group of antioxidants, the tocotrienols, are present in both palm olein and red palm oil. These vitamin E-active constituents are potent suppressors of cholesterol biosynthesis; emerging data point to their anticarcinogenic and antithrombotic activities. This review does not support claims that foods containing palm oil have no place in a prudent diet.



This paper is referenced by
Bioavilability enhancement of poorly water soluble drugs using Self Emulsifying Drug Delivery System (SEDDS) and Solid Dispersion (SD) technology
S. Islam (2016)
10.11648/j.ijbecs.20170305.11
Effect of Co-Administration of Vitamin E Isoforms d- α-Tocopherol and d-δ- Tocotrienol Rich Fraction on the Healing of Skin Wounds in Diabetic Rats
Bijo Elsy (2017)
10.1007/BF02637092
Characteristics of fats in Japanese diets and current recommendations
M. Sugano (2007)
10.21767/2469-6692.100019
A Brief Journey of Tocotrienols as Anticancer Agents
Inamul Kabir (2017)
Eff ect of vitamin E isoforms on the primary intention skin wound healing of diabetic rats
Bijo Elsy (2017)
10.2337/diacare.16.11.1433
Daily Vitamin E Supplements Improve Metabolic Control But Not Insulin Secretion in Elderly Type II Diabetic Patients
G. Paolisso (1993)
10.7241/OURD.20174.109
Therapeutic potential of d-δ-tocotrienol rich fraction on excisional skin wounds in diabetic rats
B. Elsy (2017)
10.1093/carcin/bgt064
Effect of annatto-tocotrienols supplementation on the development of mammary tumors in HER-2/neu transgenic mice.
E. Pierpaoli (2013)
10.5455/2349-3259.IJCT20141102
Tocotrienols and its impact in cardiovascular health
B. P. Mishra (2014)
10.1155/2012/250584
Vitamin E and Bone Structural Changes: An Evidence-Based Review
Isa Naina Mohamed (2012)
10.5772/INTECHOPEN.78273
γ-Tocotrienol Reversal of Epithelial-to-Mesenchymal Transition in Human Breast Cancer Cells is Mediated through a Suppression of Canonical Wnt and Hedgehog Signaling
R. A. Ahmed (2018)
Rice Bran Dietary Supplementation Improves Neurological Symptoms and Loss of Purkinje Cells in Vitamin E-Deficient Mice
T. Takahashi (2016)
10.1207/S15327914NC4502_14
Role of Caspase-8 Activation in Mediating Vitamin E-Induced Apoptosis in Murine Mammary Cancer Cells
Sumit J Shah (2003)
10.1186/1476-511X-12-69
Chicken meat nutritional value when feeding red palm oil, palm oil or rendered animal fat in combinations with linseed oil, rapeseed oil and two levels of selenium
N. Nyquist (2013)
10.4161/cc.3.2.637
Tocotrienol-Rich Fraction of Palm Oil Activates p53, Modulates Bax/Bcl2 Ratio and Induces Apoptosis Independent of Cell Cycle Association
M. Agarwal (2004)
10.3109/02652048.2013.788085
Simvastatin nanoemulsion for improved oral delivery: design, characterisation, in vitro and in vivo studies
S. Chavhan (2013)
Intervention of non-small cell line cancer oncogenic pathways with delta-tocotrienol
Xiangming Ji (2012)
Reheating of soy oil is detrimental to bone metabolism in oestrogen deficient rats.
S. Ima-Nirwana (2007)
Targeting CWR22Rv1 prostate cancer cell proliferation and gene expression by combinations of the phytochemicals EGCG, genistein and quercetin.
T. Hsieh (2009)
10.2478/v10007-007-0009-5
Formulation of a self-emulsifying system for oral delivery of simvastatin: In vitro and in vivo evaluation
P. Patil (2007)
10.1080/1023666X.2011.588306
Characterization of Oligomeric Hydroxyalkanoic Acids from Thermal Decomposition of Palm Kernel Oil–Based Biopolyester
Mei Chan Sin (2011)
10.3109/02652048.2014.995726
Micronisation of simvastatin by the supercritical antisolvent technique: in vitro–in vivo evaluation
J. Patel (2015)
10.1098/rsos.170275
Terahertz time-domain spectroscopy of edible oils
A. Dinovitser (2017)
10.1046/J.1440-6047.2001.00201.X
Contemporary Minangkabau food culture in West Sumatra, Indonesia.
N. I. Lipoeto (2001)
10.1080/16546628.2017.1330104
Impact of palm olein in infant formulas on stool consistency and frequency: a meta-analysis of randomized clinical trials
J. Lasekan (2017)
10.7439/IJBAR.V3I9.741
PALM OIL TOCOTRIENOLS AND ITS POTENTIAL AGAINST ALZHEIMER'S DISEASE AND BRAIN ISCHEMIA
I. Musa (2012)
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