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木寡糖的研究及其进展 总被引:4,自引:0,他引:4
近年来低聚糖已成为食品学界研究的焦点。木寡糖作为一种新兴的低聚糖,由于其在理化特性和功能性等诸多方面优于其它低聚糖,更是倍受食品界的广泛关注,本文以国内外的研究状况为基点,从木寡糖的功能性、生产方法以及分析测定等多方面加以详细论述,最后对木寡糖在国内外的市场前景作了进一步的分析和预测。 相似文献
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棉籽糖家族寡糖(Raffinose family oligosaccharides,RFOs)是α-蔗糖的1, 6-半乳糖基延伸物,是一种植物非结构性碳水化合物,主要包括棉籽糖、水苏糖、毛蕊花糖,普遍存在于植物界中。其中,在豆科植物、地黄、水苏、草石蚕等植物中较为常见,属于功能性低聚糖。RFOs因具备调节肠道菌群、预防炎症性肠病、保护肝脏、降血糖等活性功能,在功能性食品开发中的应用潜力巨大。本文主要综述RFOs的来源,RFOs提取、分离、纯化相关技术的研究,以及RFOs的功能性,以期为RFOs的开发和利用提供一定的理论参考,使其能够更好地应用于功能性食品当中。 相似文献
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《Food microbiology》2000,17(1):13-22
Lactic acid bacteria (LAB) were isolated from human colon biopsies on LAMVAB by enrichment with different substrates such as lactose derivatives, rye arabinoxylo-oligosaccharides and rye fractions. The selected isolates were tested for their ability to adhere to Caco-2 cells. Only Lactobacillus species were enriched under these conditions. From 161 isolates screened, 28% were identified by ribotyping as Lactobacillus rhamnosus, 29% as L. salivarius, 14% as L. cellobiosus, 13% as L. paracasei and the rest remained unidentified.L. rhamnosus was preferentially enriched by lactulose, L. salivarius by lactobionic acid, L. cellobiosus by lactitol and L. paracasei by arabinoxylo-oligosaccharides. The biopsy-derived strains L. rhamnosus E-97948 andL. paracasei E-97949 have potential for further evaluations in their probiotic and technological properties. Lactulose may have prebiotic effects on colonic LAB by favouring their growth. 相似文献
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Maize bran was treated with microwave irradiation (160–200 °C for 2–20 min) to release feruloylated arabinoxylo-oligosaccharides (AXOS). Lower temperatures and shorter treatment times were consistent with low AXOS yields, while higher temperatures and longer reaction times also resulted in low yields, which were contaminated with increasing levels of monosaccharides, free ferulic acid, and furfural. Maximum release of AXOS, accompanied by low production of monosaccharides, free ferulic acid, and furfural, occurred with treatment at 180 °C for 10 min or 200 °C for 2 min. Under these conditions, about 50% of the initial arabinoxylan content could be released as AXOS, containing a wide variety of molecular weights. AXOS were highly feruloylated, containing 6.62 and 8.00 g of esterified ferulate/100 g of AXOS. These feruloylated AXOS may provide health benefits, including prebiotic effects and prevention of detrimental oxidation reactions. The evaluation of these benefits will be the subject of future research. 相似文献
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淡水水产是盐业企业调整产业结构,转变发展方式的重要途径,本文从射阳盐场水产业发展现状入手,详细分析了其发展的特点和存在的问题,提出了进一步发展的政策建议。 相似文献
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碎纸机作为一种现代化的办公设备,在世界各地慢慢地推广和普及,几乎在每一间办公室甚至在很多家庭中,人们都理所当然地采用碎纸机办公,并且已经形成了习惯. 相似文献
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靴形压榨这种新技术在造纸工业已成功应用多年 ,我国一些新设计的浆纸厂也已涉及这一领域 ,并已有工厂成功应用。目前靴形压榨技术还用于提高商品浆的干度 ,在将来 ,靴形压榨有两个主要应用 :①若纸浆生产线能力为 2 5 0 0t/d ,靴形压榨技术可保证纸浆进入气垫干燥器之前具有合格的干度 ;②改造现有纸浆干燥生产线和提高现有纸浆干燥生产线的能力 ,采用靴形压榨技术 ,可使生产能力提高2 5 %。由于提高了进入干燥部的纸浆干度 ,因而不需要相应地改造干燥部。在靴形压榨使用方面 ,芬兰的Mets Botui偄s nekoski工厂有成功的操作经验 ,该厂采… 相似文献
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