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연구논문 : 발아 전후 현미유에서의 기능성 지질성분 변화
관지은 ( Ji Eun Kwak ),윤성원 ( Sung Won Yoon ),김대중 ( Dae Jung Kim ),윤미라 ( Mi Ra Yoon ),이정희 ( Jeong Heui Lee ),오세관 ( Sea Kwan Oh ),김인환 ( In Hwan Kim ),이준수 ( Jun Soo Lee ),이점식 ( Jeom Sig Lee ),장재기 ( Je Ki Ch 한국식품영양학회 2013 韓國食品營養學會誌 Vol.26 No.3
This study investigated the changes in the nutraceutical lipid components of brown rice oil after germination. Four different high-yielding cultivars (Dasan1, Segyejinmi, Hanareum1 and Hanareum2) of Korean brown rice were selected and brown rice oil was extracted from each cultivar before and after germination. Free fatty acid, squalene, policosanols, and isomers of phytosterol were analyzed using GC, and isomers of tocols (tocopherol and tocotrienol) and γ-oryzanol were quantified using HPLC from both brown rice oil (BRO) and germinated brown rice oil (GBRO). The contents of phytosterol isomers, campesterol, stigmasterol, and β-sitosterol were increased by 8.3%, 31.6%, 3.3% in GBRO, respectively. Furthermore, the squalene content showed the highest increase of up to 2.4 fold in GBRO compared to BRO. In addition, linoleic and linolenic acid composition increased whereas oleic and palmitic acid decreased in the GRBO. However, the contents of tocols (tocopherol and tocotrienol) in GBRO were lower than those in BRO, and there was no significant difference in policosanol and γ-oryzanol between GBRO and BRO. These results suggest that GBRO has the potential as a healthy and functional source due to its lipid profile on improved lipid metabolism.