机械活化固相法制备乙酰化二淀粉磷酸酯  

Preparation of acetylated distarch phosphate by mechanical activation

作　　者：陈江枫 蓝焕师 梁露锋 覃宇奔[2] 胡华宇[2] 甘涛[2] 张燕娟[2] 黄祖强[2] CHEN Jiang-feng;LAN Huan-shi;LIANG Lu-feng;QIN Yu-ben;HU Hua-yu;GAN Tao;ZHANG Yan-juan;HUANG Zu-qiang(State Key Laboratory of Enzymatic Hydrolysis of Non-grain Biomass//Guangxi Nongken Mingyang Biochemical Co.,LTD.//Guangxi Nongken Mingyang Starch Development Co.,LTD.,Nanning 530226,China;College of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China)

机构地区：[1]非粮生物质酶解国家重点实验室//广西农垦明阳生化有限公司//广西农垦明阳淀粉发展有限公司,广西南宁530226 [2]广西大学化学化工学院,广西南宁530004

出　　处：《粮食与饲料工业》2023年第6期20-25,共6页Cereal & Feed Industry

基　　金：广西重大科技创新基地(桂科计字[2018]15号);广西自然科学基金项目(2017GXNSFEA198001,2018GXNSFAA138037)。

摘　　要：采用机械活化固相法制备乙酰化二淀粉磷酸酯(ADSP),并进行表征分析。以冷糊黏度为评价指标,分别研究机械活化时间、醋酸酐用量、交联剂用量、机械活化温度和球磨转速对产品冷糊黏度的影响。结果表明,固定绝干淀粉用量,当醋酸酐用量为5%,三偏磷酸钠用量为2%,机械活化时间为60 min,球磨温度为40℃,球磨转速为100 r/min时,所得到的ADSP冷糊黏度为27000 mPa·s。XRD、SEM和FT-IR表征分析表明,交联酯化作用不会改变淀粉的晶型结构,但会改变淀粉颗粒表面的形貌;机械活化作用可使淀粉颗粒形貌和结晶结构破坏;淀粉成功发生了酯化反应,但由于交联程度较低,不能确定交联键的伸缩振动吸收峰。制备的ADSP进行鱼丸应用试验,全质构分析结果表明,ADSP可改善鱼丸的硬度和咀嚼性,并提高鱼丸的内聚性,这有助于改善鱼丸的口感品质和抗压缩能力。Acetylated distarch phosphate(ADSP)was prepared by mechanical activation solid phase method and characterized.The effects of mechanical activation time,acetic anhydride dosage,crosslinker dosage,mechanical activation temperature and ball milling speed on the viscosity of cold paste were studied with cold paste viscosity as the evaluation index.The results showed that:when the amount of absolute dry starch was fixed,the amount of acetic anhydride was 5%,the amount of sodium trimetaphosphate was 2%,the mechanical activation time was 60 min,the milling temperature was 40 C,and the milling speed was 100 r/min,the highest ADSP cold paste viscosity of 27000 mPa·s was obtained..XRD,SEM and FT-IR analysis showed that the crystallization structure of starch was not changed by crosslinking esterification,but was destroyed by mechanical activation.Mechanical activation changed the shape of starch particles,and crosslinking esterification changed the surface morphology of starch particles.The starch was esterified successfully,but the stretching vibration absorption peak could not be determined due to the low degree of cross-linking.The prepared ADSP was used for fish ball application test,the results of the whole texture analysis showed that ADSP could improve the hardness and chewability of the fish balls,and improve the cohesion of the fish balls,which was helpful to improve the taste quality and compression resistance of the fish balls.

关 键 词：机械活化 乙酰化 三偏磷酸钠 淀粉酯 

分 类 号：TS235[轻工技术与工程—粮食、油脂及植物蛋白工程]