CN112401166A - 一种海参膏及其制备方法 - Google Patents
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Abstract
本发明公开了一种海参膏的制备方法,包括浸泡、清洗、破碎、首次酶解、二次酶解、勾兑、灌装杀菌、冷却后即得海参膏;本发明分别采用胃蛋白酶和胰蛋白酶,对海参进行二次水解,操作简单,安全可靠,蛋白提取效率高。
Description
技术领域
本发明属于食品加工技术领域,具体涉及一种海参膏及其制备方法。
背景技术
现代科学研究证明,海参营养价值很高,每百克中含蛋白质15克,脂肪1克、碳水化合物0.4克,钙357毫克、磷12毫克,铁2.4毫克,以及维生素B1、B2、尼克酸等50多种对人体生理活动有益的营养成分,其中蛋白质含量高达55%以上,18种氨基酸牛磺酸、硫酸软骨素、刺参粘多糖多种成分,是合成人体胶原蛋白的主要原料。
另外,海参因含胆固醇极低,为一种典型的高蛋白、低脂肪、低胆固醇的食物。又因肉质细嫩,易于消化,所以非常适合老年人与儿童,以及体质虚弱者食用。海参中的牛磺酸、尼克酸等,具有调节神经系统、快速消除疲劳,预防皮肤老化的功效,而海参中含有的牛磺酸、赖氨酸、蛋氨酸等在植物性食品中几乎没有,刺参中含有的硫酸软骨素和刺参粘多糖,通过药理实验证明,对人体的生长发育、抗炎成骨和预防组织老化,促进伤口愈合抑制数种癌细胞都有特殊功效。
海参食用时多需要水发和蒸煮,食用不方便,单独食用海参,营养单一,不能补充每日所需的所有营养,可制成海参膏,方便用户使用和携带,海参膏的制作,需要对海参进行水解,将其当中的蛋白质提取出来,目前常规的操作是酸水解,但其水解温度较高,且水解不充分,蛋白提取效率差。
发明内容
为解决以上技术问题,本发明提出一种海参膏的制备方法,分别采用胃蛋白酶和胰蛋白酶,对海参进行二次水解,操作简单,安全可靠,蛋白提取效率高。
本发明所提出的技术方案如下:
一种海参膏的制备方法,包括以下步骤:
(1)将干海参在水中浸泡15~20小时,每隔1~2小时换一次水,浸泡用水量为海参重量的11~13倍;
(2)将上述浸泡后的海参剖开,去除残存的内脏及泥沙,再用流动的清水进行冲洗,洗净后切碎;
(3)将步骤(2)得到的海参加入pH1.5~3.5的缓冲液中,加入胃蛋白酶,50℃下酶解4~10h,酶解结束后,75~85℃灭酶10~15min,离心去上清液;
(4)将步骤(3)得到的上清液,调节溶液pH至6~7,加入胰蛋白酶,50℃下酶解4h,酶解结束后,75~85℃灭酶10~15min,离心取上清液;
(5)将步骤(4)得到的上清液与葡萄糖浆、白砂糖、蜂蜜、琼脂进行混合勾兑后,浓缩成为膏液,罐装封口后,置于100~140℃高压杀菌锅中,保温杀菌10~30min,冷却后即得海参膏。
优选地,步骤(2)中,缓冲液的pH值为2.5;步骤(3)中,溶液的pH值为6.5。
优选地,干海参为沙虫参或赤条参。
优选地,所述海参为沙虫参,沙虫参与缓冲液的料液比为1:(2~3)。
优选地,所述海参为赤条参,赤条参与缓冲液的料液比为1:(1~2)。
优选地,步骤(3)中,胃蛋白酶的加入量为0.5~4%。
更优选地,步骤(3)中,胃蛋白酶的加入量为2%。
优选地,步骤(4)中,胰蛋白酶的加入量为2~3%。
更优选地,步骤(4)中,胰蛋白酶的加入量为2%。
本发明还公开了一种海参膏,由上述制备方法所得。
与现有技术相比,本发明具有以下技术优势:
(1)本发明通过原料的复合搭配增加了海参的适口,不加任何添加剂,原色原味,是真正的纯绿色天然补品,对白血病、糖尿病、哮喘、阳痿肾虚、肿瘤以及前列腺等病症有辅助治疗作用,并能滋补美容,补肾助阳,祛风除湿,强筋健骨、阴阳双补,增强人体的免疫力,是一款强身健体男女皆宜的美食。
(2)本发明选用不同的蛋白酶,对海参进行二次水解,酶解效率高,蛋白提取效率高。整个酶解过程简单,利于大规模生产需要。
具体实施方式
现结合具体实施例对本发明做进一步说明。
实施例1
本发明公开了一种海参膏的制备方法,具体步骤如下:
(1)将赤条参在水中浸泡15小时,每隔1小时换一次水,浸泡用水量为赤条参重量的11倍;
(2)将上述浸泡后的赤条参剖开,去除残存的内脏及泥沙,再用流动的清水进行冲洗,洗净后切碎;
(3)将步骤(2)得到的赤条参按料液比1:1加入pH2.5的缓冲液中,加入2%的胃蛋白酶,50℃下酶解6h,酶解结束后,80℃灭酶10min,10000r/min离心10min得上清液;
(4)将步骤(3)得到的上清液,调节溶液pH至6.5,加入2%的胰蛋白酶,50℃下酶解4h,酶解结束后,80℃灭酶10min,10000r/min离心10min得水解液;
(5)将步骤(4)得到的上清液与葡萄糖浆、白砂糖、蜂蜜、琼脂进行混合勾兑后,浓缩成为膏液,罐装封口后,置于100℃高压杀菌锅中,保温杀菌30min,冷却后即得海参膏。
实施例2
本发明公开了一种海参膏的制备方法,具体步骤如下:
(1)将沙虫参在水中浸泡20小时,每隔2小时换一次水,浸泡用水量为沙虫参重量的13倍;
(2)将上述浸泡后的沙虫参剖开,去除残存的内脏及泥沙,再用流动的清水进行冲洗,洗净后切碎;
(3)将步骤(2)得到的沙虫参按料液比1:2加入pH2.5的缓冲液中,加入2%的胃蛋白酶,50℃下酶解8h,酶解结束后,80℃灭酶10min,10000r/min离心10min得上清液;
(4)将步骤(3)得到的上清液,调节溶液pH至6.5,加入2%的胰蛋白酶,50℃下酶解4h,酶解结束后,80℃灭酶10min,10000r/min离心10min得水解液;
(5)将步骤(4)得到的上清液与葡萄糖浆、白砂糖、蜂蜜、琼脂进行混合勾兑后,浓缩成为膏液,罐装封口后,置于120℃高压杀菌锅中,保温杀菌20min,冷却后即得海参膏。
对比例1
一种采用醋酸水解赤条参的办法,具体操作方法为:取干的赤条参在水中浸泡24h,浸泡后的赤条参剖开,去除残存的内脏及泥沙,再用流动的清水进行冲洗,洗净后切碎加水50倍,食用醋酸4倍,100℃提取5h,过滤,即得海参水解液。
对比例2
一种采用醋酸水解沙虫参的办法,具体操作方法为:取干的沙虫参在水中浸泡24h,浸泡后的沙虫参剖开,去除残存的内脏及泥沙,再用流动的清水进行冲洗,洗净后切碎加水50倍,食用醋酸4倍,100℃提取5h,过滤,即得海参水解液。
性能测定
分别对实施例1~2以及对比例1~2得到的水解液进行氨氮含量以及蛋白质提取率进行测定,具体测定方法如下;
一、水解液氨氮含量测定
取10mL水解液,置于200mL烧杯中,加入70mL水,磁力搅拌,调节pH至8.2,再加入10mL甲醛溶液,混匀。以氢氧化钠标准溶液[c(NaOH)=0.05mol/L]滴定至酸度计指示pH=9.2,氢氧化钠消耗量可间接反应海参水解程度。
二、蛋白质提取率的测定
按照GB 5009.5中的方法测定干海参、酸解液、酶解液中的蛋白含量,依以下公式计算蛋白提取率。
蛋白质提取率%=(水解液中蛋白含量×水解液体积)/(干海参质量×干海参蛋白含量)×100%
具体测定结果见表1;
表1
由表1可知,酶解法所用提取液的体积小于酸解法,并且无论是使用沙虫参还是赤条参为原料,酶解法的蛋白提取率均显著高于酸解法。
Claims (10)
1.一种海参膏的制备方法,其特征在于包括以下步骤:
(1)将干海参在水中浸泡15~20小时,每隔1~2小时换一次水,浸泡用水量为海参重量的11~13倍;
(2)将上述浸泡后的海参剖开,去除残存的内脏及泥沙,再用流动的清水进行冲洗,洗净后切碎;
(3)将步骤(2)得到的海参加入pH1.5~3.5的缓冲液中,加入胃蛋白酶,50℃下酶解4~10h,酶解结束后,75~85℃灭酶10~15min,离心去上清液;
(4)将步骤(3)得到的上清液,调节溶液pH至6~7,加入胰蛋白酶,50℃下酶解4h,酶解结束后,75~85℃灭酶10~15min,离心取上清液;
(5)将步骤(4)得到的上清液与葡萄糖浆、白砂糖、蜂蜜、琼脂进行混合勾兑后,浓缩成为膏液,罐装封口后,置于100~140℃高压杀菌锅中,保温杀菌10~30min,冷却后即得海参膏。
2.根据权利要求1所述的一种海参膏的制备方法,其特征在于:步骤(2)中,缓冲液的pH值为2.5;步骤(3)中,溶液的pH值为6.5。
3.根据权利要求1所述的一种海参膏的制备方法,其特征在于:干海参为沙虫参或赤条参。
4.根据权利要求1所述的一种海参膏的制备方法,其特征在于:所述海参为沙虫参,沙虫参与缓冲液的料液比为1:(2~3)。
5.根据权利要求1所述的一种海参膏的制备方法,其特征在于:所述海参为赤条参,赤条参与缓冲液的料液比为1:(1~2)。
6.根据权利要求1所述的一种海参膏的制备方法,其特征在于:步骤(3)中,胃蛋白酶的加入量为0.5~4%。
7.根据权利要求6所述的一种海参膏的制备方法,其特征在于:步骤(3)中,胃蛋白酶的加入量为2%。
8.根据权利要求1所述的一种海参膏的制备方法,其特征在于:步骤(4)中,胰蛋白酶的加入量为2~3%。
9.根据权利要求8所述的一种海参膏的制备方法,其特征在于:步骤(4)中,胰蛋白酶的加入量为2%。
10.一种海参膏,由权利要求1-9任一项的制备方法所得。
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