India has the highest utilization of rice bran oil in terms of the available resources in the country.Parboiled rice tradition has made the available rice bran in relatively good quality.This makes the quality of crud...India has the highest utilization of rice bran oil in terms of the available resources in the country.Parboiled rice tradition has made the available rice bran in relatively good quality.This makes the quality of crude rice bran oil being also high.Therefore the following processing is made relatively simple comparing with those high free fatty acid content crude rice bran oils.In India,physical refining is commonly used.Thus the oil refining yield is usually high.The unsaponifiable content is also higher comparatively.For example,oryzanol content is usually 1%to 1.5%in weight.Although there are a large number of rice bran oil small plants in India,the technology is relatively mature for the production of relatively good quality rice bran oil.In this short overview of the production technology of rice bran oil in India,the state of the art has been elaborated in a simple form.Particularly,the problems and challenges of the production technology have been evaluated with the background of decades of research and technology development work in India.展开更多
The present work reports the heterologous expression and biochemical characterization of a novel phosphati-dylinositol phospholipase C from Bacillus thuringiensis PL14(PI-PLCBt)with potential for oil degumming.As degu...The present work reports the heterologous expression and biochemical characterization of a novel phosphati-dylinositol phospholipase C from Bacillus thuringiensis PL14(PI-PLCBt)with potential for oil degumming.As degumming is a necessary refining step for all crude vegetable oils,enzymatic degumming tests were performed on crude soybean oil using rPI-PLCBt.Its efficiency was investigated by determining the phosphorus and diac-ylglycerol(DAG)contents after different types of treatment.Although the water and chemical degumming process can efficiently reduce the phosphorus content,a specific enzymatic process can still be selected giving its high degumming efficiency of 89.4%,with a noticeable reduction in phosphorus content to 13.7 mg kg^(-1),close to the values of the chemical approach,and a high increase in DAG.Accordingly,enzymatic degumming could be adopted as an alternative to traditional degumming making the process more efficient,eco-friendly and,at the same time,increasing the nutritional value of the final product.展开更多
文摘India has the highest utilization of rice bran oil in terms of the available resources in the country.Parboiled rice tradition has made the available rice bran in relatively good quality.This makes the quality of crude rice bran oil being also high.Therefore the following processing is made relatively simple comparing with those high free fatty acid content crude rice bran oils.In India,physical refining is commonly used.Thus the oil refining yield is usually high.The unsaponifiable content is also higher comparatively.For example,oryzanol content is usually 1%to 1.5%in weight.Although there are a large number of rice bran oil small plants in India,the technology is relatively mature for the production of relatively good quality rice bran oil.In this short overview of the production technology of rice bran oil in India,the state of the art has been elaborated in a simple form.Particularly,the problems and challenges of the production technology have been evaluated with the background of decades of research and technology development work in India.
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文摘The present work reports the heterologous expression and biochemical characterization of a novel phosphati-dylinositol phospholipase C from Bacillus thuringiensis PL14(PI-PLCBt)with potential for oil degumming.As degumming is a necessary refining step for all crude vegetable oils,enzymatic degumming tests were performed on crude soybean oil using rPI-PLCBt.Its efficiency was investigated by determining the phosphorus and diac-ylglycerol(DAG)contents after different types of treatment.Although the water and chemical degumming process can efficiently reduce the phosphorus content,a specific enzymatic process can still be selected giving its high degumming efficiency of 89.4%,with a noticeable reduction in phosphorus content to 13.7 mg kg^(-1),close to the values of the chemical approach,and a high increase in DAG.Accordingly,enzymatic degumming could be adopted as an alternative to traditional degumming making the process more efficient,eco-friendly and,at the same time,increasing the nutritional value of the final product.
