Kan suksa kan phalit pectin lae yua-yai thi rapprathan dai chak phon malako thi lua lang chak kan krit yang tham papain
1995
Sanhuansi Charoenrian
Extraction of pectin from papaya waste after papain tapping was evaluated. Two varieties of papaya, i.e. native var. and kaekdum var. wre used in this study. Extraction trails were done using 3 different reagents, 0.05 NHCI, 0.05 percent EDTA (ethylene diamine tetraacetate) and 0.1 percent SHMP (sodium hexametaphosphate). Papaya pulp, after pectin extraction was used to produce deible fiber. It was found that drying at 60 deg C for 12 hours could reduce moisture content of papaya to 12-17 percent. the dried papaya can kept and used for pectin extraction for 3 month periods. The results showed that 0.05 percent EDTA gave the highest yeild of extracted pectin, however, the pectin purity was lower than those extracted by 0.1 percent SHMP and 0.05 N HCI, respectively. Pectin extracted by using 0.1 percent SHMP was high in methoxyl content and low in ash and could be compared favorably with a pectin from apple. It is concluded that 0.1 percent SHMP was a suitable extracting solution and yielded 8-11 percent pectin with 75-78 percent purity as calcium pectate, 1.5-3.8 percent ash and 3.8-5.2 percent methoxyl content. Yield of edible fiber produced from papaya pulp was 9-19 percent and contained 33-54 percent crude fiber.
显示更多 [+] 显示较少 [-]