敞口山楂汁树脂降酸规模化生产工艺优化研究.pdf

2015年12月
食品研究与开发
106、第36卷第23期
Food Research And Development
工艺技术
DOI:10.3969/issn,1005-6521.2015.23.028
敞口山楂汁树脂降酸规模化生产工艺优化研究
张玉清
濰坊工程职业学院,山东青州262500
摘要:研究采用D311型弱碱性阴离子交换树脂对敞口山楂汁进行降酸的规模化生产工艺条件。通过測定不同流
速、树脂不同再生程度、树脂再生次数等对总酸、总黄酮透过卒的影响,经试验分析,采用D311树脂填充的直径1m、
高2m的不銹钢降酸罐作为降酸设备时,室温下,最佳流速500Lh~600Lh(根据后续生产对山楂汁总酸含量要求确
定),用1 mol/L Nao且洗脱液对D31l阴离子交換树脂再生时,控制再生液pll5.5~6.5使树脂不完全再生为宜;树脂
多次不完全再生处理后,以600Lh流速过柱处理500kg敞口山楂汁,总酸平均透过率为24.7%,总黄酮平均透过率
为88.3%
关键词:敝ロ山楂汁;D311树脂再生;降酸;流速;总黄酮
Research on Large-scale Productive Technology Optimization of Changkou Hawthorn J uice by
Deacidification Process with Anion-exchange Resin
ZHANG Yu-ing
(Weifang Engineering Vocational College, Qingzhou 262500, Shandong, China
Abstract: Conditions of large-scale productive technology of Changkou Hawthorn juice by deacidification
process with D3 1 I weak-base anion-exchange resin were studied in this paper. The influences of different flow
velocity, resin regeneration degree, and resin regeneration frequencies on the transmittance of total acid and
total flavonoids are measured. Through experimental analysis, when a I meter high and diameter of 2 meters
steel deacidification tank filled with D31 1 resin was adopted, the optimal velocity was 500 h-600 h at room
temperature (according to the requirements of total acid content for subsequent production of hawthorn juice
When D3 11 anion exchange resin was regenerated with I mol/I, NAOH, the pl value of the regenerated liquid
was 5.5-6.5 so that the resin is not completely regenerated. After several incomplete regeneration of the resin
500 kg Changkou hawthorn juice was processed with a flow rate of 600 I/h. The average transmitance of total
acid and total flavonoids were 24.7 %o and 88.3 respectively
Key words: Changkou hawthorn juice; D31 I resin regeneration; deacidification; flow rate; total flavonoid
敞口山楂是大山楂的一个品种,主产于山东鲁中
D311树脂能很好地降低山楂汁的酸度且黄酮的保存
山区,以青州、临朐等市县栽培最盛,是“国家地理标效果较好,是山楂汁较适宜的降酸阴离子交换树脂”。
志”产品,风味独特、营养丰富,尤其是黄酮类物质含量本文在上述研究的基础上,对规模化敞口山楂汁生产
高。柳嘉等研究证明山楂黄酮抗氧化能力强,有抑制中采用D311树脂降酸进行研究,获取了生产工艺条件。
细胞的作用;刘北林等研究证明山楂黄酮具有降血
脂的作用。但由于山楂酸度高,限制了其加工产品的1材料与方法
种类,利用率低,普通降酸工艺造成黄酮类物质的大1.1主要材料及设备
量损失。因此,降低山楂果汁中酸度,最大可能保存黄
敞口山楂汁,直径1m、高2m的不锈钢降酸罐
同类物质是山楂深加工亟待解决的问题。山楂中柠檬山东皇尊庄园山楂酒有限公司自制:D311型弱碱性阴
酸占总酸83%左右,王恳、朱传合、乔聚林进行了碱性离子交换树脂:天沖那台树脂科技有限公司
阴离子交换树脂对山楂汁的降酸试验,得出结论1.2方法
1.2.1敞口山楂汁的制备
作者简介:张玉清(1970-),女(汉),副教授,硕士,主要从事食品
选择红色、无腐烂、成熟的山楂,用清水冲洗干
工艺研究
浄,加山楂重量2倍重的纯浄水加热至沸,加入山楂煮