从谷物副产品中回收的油脂中的亲脂性生物活性化合物。

Lipophilic bioactive compounds in the oils recovered from cereal by-products.

作者信息

Górnaś Paweł, Rudzińska Magdalena, Raczyk Marianna, Soliven Arianne

机构信息

Latvia State Institute of Fruit-Growing, Graudu 1, Dobele, LV-3701, Latvia.

Institute of Food Technology of Plant Origin, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624, Poznań, Poland.

出版信息

J Sci Food Agric. 2016 Jul;96(9):3256-65. doi: 10.1002/jsfa.7511. Epub 2015 Dec 9.

DOI:10.1002/jsfa.7511

PMID:26522347

Abstract

BACKGROUND

The by-products of seven different cereal grains were investigated as a source of extractable oil, rich in lipophilic bioactive compounds.

RESULTS

Oil yields (g kg(-1) DW) recovered from cereal by-products were as follows: 189 (rice bran) > 112 (wheat germ) > 74 (corn bran) > 58 (oat bran) > 41 (buckwheat bran) > 39 (spelt bran) > 33 (wheat bran) > 27 (rye bran). The main fatty acids identified in the studied oil samples were palmitic acid (11.39-17.23%), oleic acid (11.76-42.73%), linoleic acid (35.54-62.65%) and α-linolenic acid (1.05-9.46%). The range of total tocochromanols and phytosterols in the obtained oils was 0.369-3.763 and 1.19-35.24 g kg(-1) of oil, respectively. The oils recovered from buckwheat and corn bran, and wheat germ were dominated by tocopherols (99.9, 84.2 and 96.5%, respectively), whereas the oat, rice, rye, spelt, wheat bran oils were rich in tocotrienols (73.9, 79.6, 78.1, 90.6 and 73.8%, respectively). The campesterol and β-sitosterol constituted 10.1-32.5 and 30.4-63.7%, respectively, of total phytosterols contents identified in all of the studied samples.

CONCLUSION

摘要

背景

对七种不同谷物的副产品作为富含亲脂性生物活性化合物的可提取油来源进行了研究。

结果

从谷物副产品中回收的油产量（g kg(-1)干重）如下：189（米糠）＞112（小麦胚芽）＞74（玉米麸）＞58（燕麦麸）＞41（荞麦麸）＞39（斯佩尔特小麦麸）＞33（小麦麸）＞27（黑麦麸）。在所研究的油样中鉴定出的主要脂肪酸为棕榈酸（11.39 - 17.23%）、油酸（11.76 - 42.73%）、亚油酸（35.54 - 62.65%）和α-亚麻酸（1.05 - 9.46%）。所获油中总生育三烯酚和植物甾醇的含量范围分别为0.369 - 3.763和1.19 - 35.24 g kg(-1)油。从荞麦麸、玉米麸和小麦胚芽中回收的油以生育酚为主（分别为99.9%、84.2%和96.5%），而燕麦麸、米糠、黑麦麸、斯佩尔特小麦麸、小麦麸油富含生育三烯酚（分别为73.9%、79.6%、78.1%、90.6%和73.8%）。在所有研究样品中鉴定出的植物甾醇总量中，菜油甾醇和β-谷甾醇分别占10.1 - 32.5%和30.4 - 63.7%。