Muir Jane G, Shepherd Susan J, Rosella Ourania, Rose Rosemary, Barrett Jacqueline S, Gibson Peter R
Monash University, Department of Medicine, Box Hill Hospital, Victoria 3128, Australia.
J Agric Food Chem. 2007 Aug 8;55(16):6619-27. doi: 10.1021/jf070623x. Epub 2007 Jul 11.
Fructans are not digested in the small intestines of humans. While many health benefits have been attributed to these carbohydrates, they can cause gastrointestinal symptoms in some individuals. We measured the total fructans in 60 vegetables and 43 fruits using the Megazyme fructan assay. Vegetables with the highest quantity of fructans included garlic, artichoke, shallots, leek bulb, and onions (range, 1.2-17.4 g/100 g fw). Fruits with low, but detectable, fructans included longon, white peach, persimmon, and melon (range, 0.21-0.46 g/100 g fw). The fructan assay was modified to provide an estimate of the average chain length (degree of polymerization) for high fructan vegetables. d-Fructose can also be malabsorbed in the small intestine of humans, so the d-fructose content in some foods was measured to supplement the current food tables. Research in this area will be facilitated through the availability of more comprehensive food composition data.
果聚糖在人类小肠中无法被消化。尽管这些碳水化合物具有诸多健康益处，但它们可能会在一些人身上引发胃肠道症状。我们使用梅格齐酶果聚糖检测法测定了60种蔬菜和43种水果中的总果聚糖含量。果聚糖含量最高的蔬菜包括大蒜、洋蓟、葱、韭葱鳞茎和洋葱（范围为1.2 - 17.4克/100克鲜重）。果聚糖含量较低但可检测到的水果包括龙眼、白桃、柿子和甜瓜（范围为0.21 - 0.46克/100克鲜重）。对果聚糖检测法进行了改进，以估算高果聚糖蔬菜的平均链长（聚合度）。d - 果糖在人类小肠中也可能吸收不良，因此对一些食物中的d - 果糖含量进行了测定，以补充当前的食物成分表。通过提供更全面的食物成分数据，将促进该领域的研究。
