Composition of Coconut Testa, Coconut Kernel and its Oil

被引:78
作者
Appaiah, Prakruthi [1 ]
Sunil, L. [1 ]
Kumar, P. K. Prasanth [1 ]
Krishna, A. G. Gopala [1 ]
机构
[1] CSIR Cent Food Technol Res Inst, Dept Lipid Sci & Tradit Foods, Mysore 570020, Karnataka, India
关键词
Acylglycerols; Coconut kernel; Coconut testa; Copra; Fatty acids; Oil; Phenolics; Phytosterols; Tocopherols; Triacylglycerols; POLYPHENOLS; OXIDATION; CANCER;
D O I
10.1007/s11746-014-2447-9
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Testa, a by-product from the coconut processing industry is getting wasted. A study was carried out to utilize testa as a source of edible oil. The composition of the oils from testa of wet coconut (WCT) and copra (CT) were evaluated and compared with wet coconut whole, copra whole, wet coconut white kernel and copra white kernel. The samples had fat as a major component ranging from 34 to 63 %. Oils had 90-98.2 % triacylglycerols, 1-8 % diacylglycerols and 0.4-2 % monoacylglycerols. The triacylglycerol composition of oil from WCT had decreased trilaurin and increased triolein. Lauric acid content of CT was 40.9 % and WCT was 32.4 % whereas other oils were 50-53 %. Oils from testa were richer in monounsaturates and polyunsaturates than other coconut oil samples. The phenolics and phytosterols content were 0.2-1.9 % and 31-51 mg%, respectively. The total phenolic acids and tocopherol content of oils from CT (313.9 mu g%, 22.3 mg%) and WCT (389.0 mu g%, 100.1 mg%) were higher than other samples (94.8-291.4 mu g%, 2.5-6.7 mg%). These studies indicated that the oil from coconut testa contained more of natural antioxidants such as tocopherols, tocotrienols and phenolics compared to coconut kernel oil and may confer health benefits.
引用
收藏
页码:917 / 924
页数:8
相关论文
共 32 条
[1]  
[Anonymous], 1998, AC241 AOCS
[2]  
AOAC, 1997, OFF METH AN, P684
[3]   Fatty Acid Composition, Oxidative Stability, and Radical Scavenging Activity of Vegetable Oil Blends with Coconut Oil [J].
Bhatnagar, A. S. ;
Kumar, P. K. Prasanth ;
Hemavathy, J. ;
Krishna, A. G. Gopala .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 2009, 86 (10) :991-999
[4]  
Bravo L, 1998, NUTR REV, V56, P317, DOI 10.1111/j.1753-4887.1998.tb01670.x
[5]   Rapid and complete extraction of phenols from olive oil and determination by means of a coulometric electrode array system [J].
Brenes, M ;
García, A ;
García, P ;
Garrido, A .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2000, 48 (11) :5178-5183
[6]   Plant polyphenols in cancer and heart disease: implications as nutritional antioxidants [J].
Duthie, GG ;
Duthie, SJ ;
Kyle, JAM .
NUTRITION RESEARCH REVIEWS, 2000, 13 (01) :79-106
[7]  
GOPALA KAG, 2010, INDIAN COCONUT J, V73, P15
[8]   Phenolic compound profile of selected vegetables frequently consumed by African Americans in the southeast United States [J].
Huang, Zhiliang ;
Wang, Baowu ;
Eaves, Doris H. ;
Shikany, James M. ;
Pace, Ralphenia D. .
FOOD CHEMISTRY, 2007, 103 (04) :1395-1402
[9]  
KIYASU JY, 1952, J BIOL CHEM, V199, P415
[10]   Diacylglycerol Oil-Properties, Processes and Products: A Review [J].
Lo, Seong-Koon ;
Tan, Chin-Ping ;
Long, Kamariah ;
Yusoff, Mohd Suria Affandi ;
Lai, Oi-Ming .
FOOD AND BIOPROCESS TECHNOLOGY, 2008, 1 (03) :223-233