Дистиллят рисовых отрубей и жирных кислот (62021240553)

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Описание и отзывы

Характеристики


Product Description

     Rice bran oil fatty acid distillate (RBOFAD) is a by-product of the physical refining of rice bran oil and is a valuable source of γ-oryzanol, tocopherol, total phytosterol, squalene and fatty alcohol.

Process

  Approximately 6 tonnes RBOFAD are produced for every 100 tonnes of crude rice bran oil. Esterification is a process for the removal of high free fatty acids (FFA) in vegetable oil. The re-esterification of fatty acids with glycerol to neutral glycerides has been reported in the literature. A study of the esterification (chemical) of high FFA (15–30%) RBO was reported using metal salts and an acid catalyst (Bhattacharyya and Bhattacharyya, 1987; Kombe et al., 2013). Bhattacharyya and Bhattacharyya presented a FFA content reduction from 30% to 2% using acid catalyst, and after further alkali refining, bleaching and deodorization, obtained an acceptable oil color. This chemical esterification process removes high FFA from the oil sample with odoriferous compounds at a high temperature under vacuum. The fundamental objective was that the esterification involved the conversion of high FFA into neutral glycerides by a reaction with free hydroxyl groups remaining in the oil or with the added hydroxyl group from glycerol at a high temperature under high vacuum with or without catalyst (Bhosle and Subramanian, 2005). So, the main advantage of the chemical esterification process for the de-acidification of fatty acid distillate from rice bran oil with high FFA content was to increase the contents of neutral glycerides such as monoglyceride (MG), diglyceride (DG) and triglyceride (TG).

Packing & Delivery

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62021240553
0.0102 s.