CAJ | 학술논문

以黑小麦面粉为原料，分别采用水和Ba（OH）2溶液作为介质，提取黑小麦面粉中的水溶性戊聚糖（WEAX）和碱溶性戊聚糖（WUAX），运用离子色谱、高效液相色谱和红外光谱等对黑小麦面粉戊聚糖的理化性质进行分析．结果表明：WEAX的单糖组成主要为阿拉伯糖（Ara）和木糖（Xyl），并含有少量半乳糖（Gal），摩尔比Ara：Xyl：Gal ＝5．74：11．64：1，其取代度A／X为0．49，相对分子质量Mw为7．73×105；WUAX的单糖组成主要为Ara和Xyl，摩尔比Ara：Xyl ＝1：1．74，其A／X为0．57，Mw为6．56×104，表明WEAX的分支程度低于WUAX，但其Mw高于WUAX；红外光谱表明两种戊聚糖均存在糖类的特征吸收峰．
이흑소맥면분위원료，분별채용수화Ba（OH）2용액작위개질，제취흑소맥면분중적수용성무취당（WEAX）화감용성무취당（WUAX），운용리자색보、고효액상색보화홍외광보등대흑소맥면분무취당적이화성질진행분석．결과표명：WEAX적단당조성주요위아랍백당（Ara）화목당（Xyl），병함유소량반유당（Gal），마이비Ara：Xyl：Gal ＝5．74：11．64：1，기취대도A／X위0．49，상대분자질량Mw위7．73×105；WUAX적단당조성주요위Ara화Xyl，마이비Ara：Xyl ＝1：1．74，기A／X위0．57，Mw위6．56×104，표명WEAX적분지정도저우WUAX，단기Mw고우WUAX；홍외광보표명량충무취당균존재당류적특정흡수봉．
Water extractable and alkali extractable pentosans from black-grained wheat were obtained by water and Ba(OH)2 aqueous solution,and the physicochemical properties were analyzed by ion exchange chromatography,high performance liquid chromatography and infrared spectroscopy.The results showed that the main sugar components of WEAX were arabinose (Ara)and xylose (Xyl),with a small amount of galactose (Gal).The molar ratio of Ara:Xyl:Gal was 5 .74:1 1 .64:1 .The substitution degree (A/X) of WEAX was 0.49 and the relative molecular weight (Mw)was 7.73 ×105 .WUAX was mainly composed of Ara and Xyl.The molar ratio of Ara:Xyl was 1:1.74.The A/X was 0.57 and the Mw was 6.56 ×104. These indicated WEAX had a lower substitution degree,but a higher Mw than WUAX.IR spectra showed that there were characteristic absorption peaks of sugar in the two kinds of pentosan.