摘要
DHA是大脑中最丰富的长链多不饱和脂肪酸之一,也是视网膜光受体中最丰富的多不饱和脂肪酸。然而人体,特别是婴幼儿自身合成DHA的能力有限,缺乏DHA会影响大脑和视力的发育及其功能,故从饮食中摄取足够的DHA十分重要。鱼油是目前DHA的主要来源,但鱼油中与DHA同时存在的EPA会影响婴儿的生长发育,因此鱼油不适合添加进婴幼儿配方食品中。利用现代生物技术生产的二十二碳六烯酸单细胞油含有40%左右的高纯度DHA,几乎不含EPA,产品已能工业化生产,各种理化指标稳定,纯度和安全性优于鱼油,目前已开始应用于婴幼儿奶粉和作为功能性食品原料使用。评述了二十二碳六烯酸单细胞油的原料来源、制作过程、理化性状、吸收代谢、安全性以及在婴幼儿、孕产妇的临床功能研究等方面的研究进展,并对二十二碳六烯酸单细胞油在保健食品中的应用情况作了简单的介绍。
DHA is one of the richest content of long chain polyunsaturated fatty acid reviewed in brain and in retina light acceptor. However for individual, specially for infants,the ability of synthesizing DHA by bodyself is limited. DHA deficiency affects brain and eyes growth and functions.So it is very important to intake enough DHA from diet.Fish oil is the most prirmary source of DHA. But fish oil＇s EPA binding with DHA affect infant＇s growth and development.So fish oil is not right to be added into infant fomtula foods.With modem biotechnology, docosahexaenoic acid single cell oil（DHASCO） product contains ,40% of pure DHA without EPA.The physicochemical specifications are stable,and the purification and safety is better than fish oil, so it is used in infant milk powder or is regarded as tunctional food source.It was discussed on the raw material source, manufacturing processes,physicochemical specification,phannacokinetics, safety, preclinical toxiclology and functional studies of DHASCO.Moreover, the application of DHASCO in health food was mentioned briefly.
出处
《中国油脂》
CAS
CSCD
北大核心
2005年第8期68-72,共5页
China Oils and Fats
