VARIABILITY OF SUGARS IN STAPLE-TYPE SWEET POTATO (IPOMOEA BATATAS) CULTIVARS: THE EFFECTS OF HARVEST TIME AND STORAGE

被引：24

作者：

Adu-Kwarteng, Evelyn ^{[1
]}

Sakyi-Dawson, Esther O. ^{[2
]}

Ayernor, George S. ^{[2
]}

Van-Den Truong ^{[3
]}

Shih, Fred F. ^{[3
]}

Daigle, Kim ^{[4
]}

机构：

[1] Crops Res Inst, Kumasi, Ghana

[2] Univ Ghana, Dept Nutr & Food Sci, Legon, Ghana

[3] N Carolina State Univ, USDA ARS, Dept Food Sci, SAA Food Sci Res Unit, Raleigh, NC 27695 USA

[4] USDA ARS SRRC, New Orleans, LA USA

来源：

INTERNATIONAL JOURNAL OF FOOD PROPERTIES | 2014年 / 17卷 / 02期

关键词：

Sweet potato (Ipomoea batatas); Soluble sugars; Storage; Harvest timing; Amylase activity; GENE-EXPRESSION; ALPHA-AMYLASE; STARCH; ROOT; CARBOHYDRATE; SUCROSE; TEMPERATURE; COLOR;

D O I：

10.1080/10942912.2011.642439

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Total soluble sugar content and composition was studied by high performance liquid chromatography in four high dry-matter sweet potato cultivars at 3, 4, and 5 months maturity. Total soluble sugar consisted of sucrose, glucose, and fructose, ranging from 4.10-10.82 g/100 g (dry-weight basis). At harvest, there were significant differences in total soluble sugar due to maturity (p < 0.001) and cultivar (p < 0.05). The highest total soluble sugar contents were in 5-month samples at harvest (7.36-10.34 g/100 g) and 4-month samples after short-term storage under tropical ambient conditions (8.66-10.82 g/100 g). Estimated amylase enzyme activity varied significantly with harvest age (p < 0.05). Although reducing sugar contents were low, fructose levels in 5-month samples increased considerably after storage.

引用

页码：410 / 420

页数：11

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