YANG Jing,ZHENG Wei-wan,GAO Yuan-yuan.Influence of Microwave-assisted Alkali Pretreatment on Structure and Esterification Performance of Soybean Dietary Fiber[J].Soybean Science,2012,31(04):635-639.[doi:10.3969/j.issn.1000-9841.2012.04.025]
微波强化碱润涨预处理对豆渣膳食纤维结构及其酯化反应的影响
- Title:
- Influence of Microwave-assisted Alkali Pretreatment on Structure and Esterification Performance of Soybean Dietary Fiber
- 文章编号:
- 1000-9841（2012）04-0635-05
- Keywords:
- Soybean dietary fiber; Alkali treatment; Microwave-assisted alkali treatment; Esterification; Oil removal ability
- 分类号:
- TS214.2
- 文献标志码:
- A
- 摘要:
- 研究了碱润涨预处理和微波强化碱润涨预处理对豆渣膳食纤维化学结构，物理特性以及对豆渣纤维素酯化反应的影响。结果表明，与碱润涨预处理相比，微波强化碱润涨预处理对豆渣膳食纤维的活化效果更好，二者均没有改变豆渣纤维素的化学组分。在相同的反应条件下，没有经过预处理、碱预处理和微波强化碱润涨预处理豆渣纤维素酯的取代度分别为0.0445、0.0558和0.0681，即经过预处理后豆渣纤维素的反应可及度增大，酯化效率由57.57%提高到了88.10%，且随微波辐照时间的延长，豆渣纤维素酯的取代度增加。经过酯化改性后，豆渣纤维素酯具有较强的油污去除力，且随着酯化取代度的增加，去污力呈增加的趋势，可以应用在洗涤用品中。
- Abstract:
- Alkali treatment and microwave-assisted alkali treatment were applied to pretreatment of soybean dietary fiber to improve its reactivity.The changes of chemical composition and physical characteristics of soybean dietary fiber after activation were studied.The effect of different pretreatments on the esterification of soybean dietary fiber was discussed.The result showed that activation effect on soybean dietary fiber after microwave-assisted alkali treatment was better than alkali treatment.The chemical composition of soybean dietary fiber was not changed,however， hydrogen bonds among soybean dietary fiber moleculars were partially destroyed and the surface was damaged.These changes resulted in the increase of accessibility,specific surface area and reactivity of soybean dietary fiber.Under the similar esterification condition,degree of substitution of soybean dietary fiber ester without pretreatment was 0.0445,while those with alkali treatment and microwave-assisted alkali treatment were 0.0558 and 0.0681 respectively.The esterification efficiency was improved from 57.57% to 88.10% indicating the accessibility of soybean dietary fiber with pretreatment was increased.After the esterification modification,soybean cellulose esters have strong oil removal ability,which can be used in washing products.The oil removal ability of the soybean dietary fiber esters increased with the increase of esterification substitution degree.
参考文献/References:
[1]Tharanathan R N,Mahadevamma S.Grain legumes-a boon to human nutrition[J].Trends in Food and Science Technology,2003,14(2):507-518. [2]张春红,陈秋玲,孙可伟.微波强化碱预处理对二次纤维结构及其氰乙基化反应的影响[J].林产化学与工业,2010,30(1):97-102.(Zhang C H,Chen Q L,Sun K W.Influence of microwave-assisted alkali pretreatment on structure and cyanoethylation performance of secondary fiber[J].Chemistry and Industry of Forest Products,2010,30(1):97-102.) [3]唐爱民,梁文芷.超声波预处理对速生材木浆纤维结构的影响[J].声学技术,2000,19(2):78-82,85.(Tang A M,Liang W Z.Studies on the structure changes of fast-growing wood fiber treated by ultrasonic wave[J].Technical Acoustics,2000,19(2):78-82,85.) [4]宋晓燕.早籼米辛烯基琥珀酸淀粉酯的制备及其理化性质的研究[D].杭州:浙江大学,2007.(Song X Y.Preparation and physicochemical properties of octenyl succinic anhydride modified early indica rice starches[D].Hangzhou:Zhejiang University,2007.) [5]周小娟,郑为完,杨静,等.辛烯基琥珀酸蔗糖酯的制备、鉴定及其在微胶囊中的应用[J].食品科学,2009,30(16):146-148.(Zhou X J,Zheng W W,Yang J,et al.Preparation,characterization and its application in micro-capsules of octenyl succinic acid sucrose esters[J].Food Science,2009,30(16):146-148.) [6]Warwicker J O,Wricht A C.Fuction of sheets of cellulose chains in swelling reactions on cellulose[J].Journal of Applied Polymer Science,1967(11):659-671. [7]王喜明,薛振华,石丽慧,等.微波改性木材的初步研究[J].木材工业,2002,16(6):16-19.(Wang X M,Xue Z H,Shi L H,et al.Preliminary study on microwave modified wood[J].China Wood Industry,2002,16(6):16-19.) [8]江涛,周志芳,王清文.高强度微波辐射对落叶松木材渗透性的影响[J].林业科学,2006,42(11):87-92.(Jiang T,Zhou Z F,Wang Q W.Effects of intensive microwave irradiation on the permeability of larch wood[J].Scientia Silvae Sinicae,2006,42(11):87-92.) [9]于世林，李寅蔚.波谱分析法[M].重庆：重庆大学出版社，1994:44-50.(Yu S L,Li Y W.Spectrum analysis[M].Chongqing：Chongqing University Press,1994:44-50.) [10]刘贵生,张志明,钱学仁,等.纤维素与碱作用动力学研究[J].东北林业大学学报,1997,4(2):13-18.(Liu G S,Zhang Z M,Qian X R,et al.Study on kinetics of cellulose and alkali[J].Journal of Northeast Forestry University,1997,4(2):13-18.) [11]Fang J M,Fowler P,Assayers C,et al.The chemical modification of a range of starches under aqueous reaction conditions[J].Carbohydrate Polymers,2004,55(3):283-289. [12]王红亮，冯光柱,李和平,等.长链脂肪酸淀粉酯合成及应用研究进展[J].化学进展,2005,25(7):760-761.(Wang H L,Feng G Z,Li H P,et al.Research progress of synthesis technology and application of long-chain fatty acid esters of starch[J].Progress in Chemistry,2005,25(7)：760-761.)
备注/Memo
第一作者简介：杨婧（1987-），女，在读硕士，研究方向为农产品加工与贮藏。E-mail：yj198734@163.com。