期刊
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
卷 49, 期 8, 页码 1946-1952出版社
WILEY
DOI: 10.1111/ijfs.12524
关键词
Hydrolysis; hydrothermal treatment; mannan; mannose; oligomers; severity factor; superheated water
资金
- Silpakorn University Research and Development Institute [SURDI 53/02/03]
Coconut meal, a by-product from coconut milk production, was hydrolysed via subcritical water treatment at various maximum temperatures in the range of 100-300 degrees C using a batch-type vessel under non-isothermal conditions. The effect of the treatment temperature and time was evaluated using the severity factor (R-0) as a parameter. The highest yield of mono-and oligosaccharides (28.3 g/ 100 g dry coconut meal) was obtained at lnR(0) = 10.4 (maximum temperature of 250 degrees C within the treatment time of 14 min). At higher temperature, degradation of the saccharides was observed and a large quantity of 5-hydroxymethyl-2-furaldehyde was detected. The hydrolysates contained mannose, glucose and manno-oligosaccharides with various degrees of polymerisation. The yield and ratio of saccharide components were affected by variation of the ratio of coconut meal to water used in the subcritical water treatment.
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