Nutritional and toxicological evaluation of rubber seed oil

Abstract

883Rubber (Hevea brasiliensis) seed oil {RSO) is available in India (Ca. 4500 tons per year) and is used mainly as a drying oil. The oil does not contain any unusual fatty acids, and it is a rich source of essential fatty acids Cls:2 and C18:3 that make up 52% of its total fatty acid composition. Acute toxic potential in rats and the systemic effects and nutritional quality were assessed in a 13 week feeding study in weanling albino rats using a diet containing RSO or groundnut oil (GNO) {as the control) at a 10% level as the sole source of dietary fat. RSO did not manifest any acute toxic potential. Food consumption, growth rate and feed efficiency ratio of rats fed RSO were similar to those fed GNO. The digestibility of this oil was found to be 97%, as compared to 94% for GNO. There were no macroscopic or microscopic lesions in any of the organs which could be ascribed to the RSO incorporation in the diet. Thus the current data show that RSO could be used for edible purposes. However, it will be necessary to process the oil to achieve deodorization and to remove free fatty acids to make it organoleptically acceptable. KEY WORDS: Fat digestibility, Hevea brasiliensis, nutritionaland toxicological studies, rubber seed oil.

Para Rubber Seed Oil: New Promising Unconventional Oil for Cosmetics

“…28 and linolenic acid 19.22 including palmitic acid 8.56 and stearic acid 10.56 7 . The rubber seed oil was claimed safe as evaluated in animal models 5,7 .…”

“…The oil was further assessed on safety in mammalian cells, which is recommended prior to application of natural extract 39 into topical preparations including cosmetics 40 . Although para rubber seed oil was reported safely in animal models 7 and was applied as animal feeding 5 . Confirmatory safety was conducted in this study using human skin fibroblasts cells.…”

“…Although para rubber seed is largely transformed into animal feeding product 5 , innovative application of the para rubber seed in health promotion products including cosmetics, which are more value-added up, is sparely to be re-yield and antioxidant activity were further compared. Physicochemical properties and characterization of essential fatty acids in cosmetics were also analyzed.…”

Detoxification of castor seed meal by interaction with sal seed meal

“…The control diet contained 15% casein, 6% groundnut oil, 4% Jones Foster salt mixture (12), 6% cellulose, 59% starch and 10% starch mixed with vitamins. The composition of the vitamins is shown in Table 2 (13). The incorporation of raw castor seed meal or Tx-ll was achieved by replacement of starch from the control diet.…”

Omega-3 emulsion of Rubber <i>(Hevea brasiliensis)</i> seed oil

“…This tree produced rubber seeds that compose 43% of oil [1]. Rubber seed oil (RSO) is a semi-dried substance [2] that is rich in polyunsaturated fatty acids of C18: 2 and C18:3, as it contributes 52% of its total fatty acid composition [3]. RSO has already been shown to have many industrial applications, including possible uses for manufacturing fatty acids [4].…”