TY - JOUR
T1 - Comparative study on amount of nutraceuticals in by-products from solvent and cold pressing methods of rice bran oil processing
AU - Wongwaiwech, Donporn
AU - Weerawatanakorn, Monthana
AU - Tharatha, Somsak
AU - Ho, Chi Tang
N1 - Funding Information:
This study was carried out as part of project number R2559B019 and NRCT 32208 (2561) of the National Research Council of Thailand . Many thanks to Mr. Roy Morien of the Naresuan University Language Centre for his editing assistance and advice on English expression in this document.
Funding Information:
This study was carried out as part of project number R2559B019 and NRCT 32208 (2561) of the National Research Council of Thailand. Many thanks to Mr. Roy Morien of the Naresuan University Language Centre for his editing assistance and advice on English expression in this document.
Publisher Copyright:
© 2018
PY - 2019/1
Y1 - 2019/1
N2 - Rice bran oil (RBO) has become a popular oil globally. However, the RBO extraction process leaves various residue products, which contain bioactive substances of varying potency which could be significant sources of functional ingredients for both food production and pharmaceutical manufacture. The objective of our study was to compare the bioactive substances in various by-products derived from the two rice bran oil processing methods; solvent extraction and cold pressing. The residues from solvent extraction processing contained up to 97.37 mg/100 g of γ-aminobutyric acid in defatted rice bran, and the rice acid oil contained high levels of vitamin E (tocopherols, tocotrienols), up to 120.59 mg/100 g, as well as γ-oryzanol (3829.65 mg/100 g), phytosterol (599.40 mg/100 g), and policosanol compounds (332.79 mg/100 g). All of these values are higher than in the residues derived from cold pressing. Importantly, high amounts of total nutraceuticals (8.3 kg/100 kg) were found in residues from both processing methods, indicating the commercial potential of these residues as a source of functional ingredients for food production, as dietary supplements, and in pharmaceutical manufacture.
AB - Rice bran oil (RBO) has become a popular oil globally. However, the RBO extraction process leaves various residue products, which contain bioactive substances of varying potency which could be significant sources of functional ingredients for both food production and pharmaceutical manufacture. The objective of our study was to compare the bioactive substances in various by-products derived from the two rice bran oil processing methods; solvent extraction and cold pressing. The residues from solvent extraction processing contained up to 97.37 mg/100 g of γ-aminobutyric acid in defatted rice bran, and the rice acid oil contained high levels of vitamin E (tocopherols, tocotrienols), up to 120.59 mg/100 g, as well as γ-oryzanol (3829.65 mg/100 g), phytosterol (599.40 mg/100 g), and policosanol compounds (332.79 mg/100 g). All of these values are higher than in the residues derived from cold pressing. Importantly, high amounts of total nutraceuticals (8.3 kg/100 kg) were found in residues from both processing methods, indicating the commercial potential of these residues as a source of functional ingredients for food production, as dietary supplements, and in pharmaceutical manufacture.
KW - By-products
KW - Cold pressing process
KW - Nutraceutical
KW - Refining process
KW - Rice bran oil
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U2 - 10.1016/j.jfda.2018.06.006
DO - 10.1016/j.jfda.2018.06.006
M3 - Article
C2 - 30648596
AN - SCOPUS:85049327208
SN - 1021-9498
VL - 27
SP - 71
EP - 82
JO - Journal of Food and Drug Analysis
JF - Journal of Food and Drug Analysis
IS - 1
ER -