食品工程
食品工程
식품공정
FOOD ENGINEERING
2014年
4期
28-32,41
,共6页
梨渣%水不溶性膳食纤维%提取%脱色
梨渣%水不溶性膳食纖維%提取%脫色
리사%수불용성선식섬유%제취%탈색
pear residue%water insoluble dietary fiber%extraction%decoloration
以梨渣为原料，用酶与碱结合提取的方法，探讨了酶用量、料液比、氢氧化钠溶液浓度、温度和时间对酶碱法提取梨渣水不溶性膳食纤维得率的影响，并对其脱色工艺进行了研究。结果表明，用淀粉酶4 U/g在pH6.0下处理后，在料液比1 g∶15 mL、氢氧化钠溶液浓度1.0 mol/L，温度50℃，时间1 h的条件下提取，梨渣水不溶性膳食纤维的得率最高，达到12.9%。最优的脱色条件是H2O2溶液体积浓度8%，温度60℃，时间3 h。产品的膨胀力、持水力分别达到6.167 g/mL、7.1 g/g。
以梨渣為原料，用酶與堿結閤提取的方法，探討瞭酶用量、料液比、氫氧化鈉溶液濃度、溫度和時間對酶堿法提取梨渣水不溶性膳食纖維得率的影響，併對其脫色工藝進行瞭研究。結果錶明，用澱粉酶4 U/g在pH6.0下處理後，在料液比1 g∶15 mL、氫氧化鈉溶液濃度1.0 mol/L，溫度50℃，時間1 h的條件下提取，梨渣水不溶性膳食纖維的得率最高，達到12.9%。最優的脫色條件是H2O2溶液體積濃度8%，溫度60℃，時間3 h。產品的膨脹力、持水力分彆達到6.167 g/mL、7.1 g/g。
이리사위원료，용매여감결합제취적방법，탐토료매용량、료액비、경양화납용액농도、온도화시간대매감법제취리사수불용성선식섬유득솔적영향，병대기탈색공예진행료연구。결과표명，용정분매4 U/g재pH6.0하처리후，재료액비1 g∶15 mL、경양화납용액농도1.0 mol/L，온도50℃，시간1 h적조건하제취，리사수불용성선식섬유적득솔최고，체도12.9%。최우적탈색조건시H2O2용액체적농도8%，온도60℃，시간3 h。산품적팽창력、지수력분별체도6.167 g/mL、7.1 g/g。
Water insoluble dietary fiber extracted and decoloration from pear residue by using enzyme method and al-kali extraction method was studied. Effects of enzyme dosage, the ratio of material to solution, alkali concentration, temperature and time on extraction yield of water insoluble dietary fiber were investigated trough single-factor experi-ment method. Subsequently,a central composition experimental design was performed to attain the optimum decoloring project of water insoluble dietary fiber. The optimized conditions were as follows:amylase (4 U/g) at the conditions of pH6.0, and then with the ratio of material to solution 1 g∶15 mL,NaOH concentration 1.0 mol/L,temperature 50℃and time 1 h,the yield of water insoluble dietary fiber was found to be 12.9%. The optimum decoloring conditions were:the concentration of H2O2 8%,the reaction temperature 60℃,the reaction time 3 h. Under the optimal conditions, the expansibility,water-holding capability were 7.1 mL/g,6.167 g/g,respectively.
