Binary Solvent Extraction of Tocols, γ-Oryzanol, and Ferulic Acid from Rice Bran Using Alkaline Treatment Combined with Ultrasonication

被引：9

作者：

Hoa Thi Truong ^{[1
,5
]}

Phuong Duc Luu ^{[2
]}

Imamura, Kiyoshi ^{[1
]}

Matsubara, Takeo ^{[3
]}

Takahashi, Hideki ^{[3
]}

Takenaka, Norimichi ^{[4
]}

Luu Van Boi ^{[2
]}

Maeda, Yasuaki ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Res Org Univ Community Collaborat, Naka Ku, 1-1 Gakuen Cho, Sakai, Osaka 5998531, Japan

[2] Hanoi Univ Sci, Fac Chem, VNU, 19 Le Thanh Tong St, Hanoi, Vietnam

[3] Yanmar Co Ltd, Kita Ku, 1-9 Tsurunocho, Osaka 5308311, Japan

[4] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Naka Ku, I-1 Gakuen Cho, Sakai, Osaka 5998531, Japan

[5] Vietnam Acad Sci & Technol, Inst Environm Technol, Danang Environm Technol Ctr, Tran Dai Nghia Rd, Ngu Hanh Son Dist 550000, Danang, Vietnam

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2017年 / 65卷 / 24期

关键词：

rice bran; tocopherol; tocotrienol; gamma-oryzanol; ferulic acid; alkaline treatment; ultrasound-assisted extraction; ULTRASOUND-ASSISTED EXTRACTION; ANTIOXIDANT ACTIVITY; VITAMIN-E; FOOD-INDUSTRY; TOCOTRIENOLS; HYDROLYSIS; IDENTIFICATION; OPTIMIZATION; TOCOPHEROLS; STABILITY;

D O I：

10.1021/acs.jafc.7b00055

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Alkaline treatment (Alk) combined with ultrasound-assisted extraction (UAE) (Alk+UAE) was examined as a means of extracting tocols and gamma-oryzanol from rice bran into an organic phase while simultaneously recovering ferulic acid into an aqueous phase:The tocols and gamma-oryzanol/ferulic acid yields were determined using high-performance liquid chromatography with fluorescence and UV detection. The effects of extraction conditions were evaluated by varying the Alk treatment temperature and extraction duration. The maximum yields of tocols and gamma-oryzanol were obtained at 25 degrees C over a time span of 30 min. When the temperature was increased to 80 degrees C, the yield of ferulic acid increased dramatically, whereas the recovery of gamma-oryzanol slightly decreased. Employing the Alk+UAE procedure, the recovered concentrations of tocols, gamma-oryzanol, and ferulic acid were in the ranges of 146-518, 1591-3629, and 352-970 mu g/g, respectively. These results are in good agreement with those reported for rice bran samples from Thailand.

引用

页码：4897 / 4904

页数：8