CN114982889A - 一种绿豆皮发酵饮料的制备方法 - Google Patents
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Abstract
本发明提供了一种绿豆皮发酵饮料的制备方法,具体涉及饮料加工技术领域,具体工艺流程条件如下:绿豆→浸泡→分离绿豆皮→自然晒干→粉碎→过50目筛→接种米曲霉→混合发酵→加水匀浆→浸提→澄清→调配→均质→灌装→封盖→成品。本发明将绿豆皮作为原材料,利用俩种功效不同的2022米曲霉和40864米曲霉混合将绿豆皮进行固态发酵,研制成一款澄清型谷物发酵饮料。该绿豆皮发酵饮料的酚类物质、醇类风味物质、不溶性膳食纤维含量相比于未发酵绿豆皮饮料的含量更高,发酵过程将绿豆皮中的活性物质充分释放,营养丰富,并且口感清新独特,还具有曲香、醇香风味。目前,谷物发酵饮料是市场上少有的新型产品,在今后将具有很强的发展潜力。
Description
技术领域
本发明涉及一种绿豆皮发酵饮料的制备方法,属于饮料制品的技术领域。
背景技术
绿豆是我国传统药食兼用的食材,有很高的营养价值。绿豆中含有丰富的活性物质,如生物碱、黄酮类物质、皂苷、鞣质、膳食纤维等主要都存在绿豆皮里。其中黄酮类化合物占50%左右。黄酮类化合物具有抗氧化、抗肿瘤、清热解暑、降胆固醇、防治心血管疾病等保健功效。而且绿豆皮占绿豆总质量的7%~10%,但绿豆在加工过程中,由于采用“去皮”或“去渣”等工序,将产生的大量绿豆皮或被丢弃或作为廉价饲料,未进行深加工,极大造成资源的浪费。
米曲霉(拉丁学名:Aspergillus oryzae),半知菌亚门,丝孢纲,丝孢目,从梗孢科,最适生长温度是28-30℃左右,最适pH值范围为5-6,是曲霉属真菌中的一种很常见的好氧型的无性繁殖真菌。由于它能产生淀粉酶、纤维素酶和β-葡萄糖苷酶等活性酶,所以被用于工业发酵生产各种产品,如清酒、酱油和低醇饮料等。并且它的发酵产物中含有大量酚类物质,所以米曲霉发酵所加工的产品及食品对人类具有一定的保健功效。
发酵饮料由于其营养丰富,且具有一定的功能性成分,风味独特,便受到越来越多的消费者的喜爱。但目前市场上发酵饮料的菌种多为乳酸菌,其他有益菌种如米曲霉等真菌的发酵饮料还是很少见,绿豆皮发酵饮料口感独特,创意新颖,是目前市场上少有的新型产品,在今后相当长的一段时期内具有很强的市场竞争力。
发明内容
本发明的目的是解决农工业残留或废渣如种子、果皮、种子壳、果渣或秸秆等有价值资源被浪费的问题,利用发酵的技术将富含活性物质的绿豆皮进行固态发酵制成有益健康的功能性饮料,提升廉价资源的附加值和利用率,为新食品开发提供新的方向和思路。
本发明采取以下技术方案实现:以5-10g过50目筛的绿豆皮粉为原料,将米曲霉混合发酵剂作为发酵剂进行固态发酵,发酵完成后再进行调配,具体步骤包括:
(1)米曲霉混合发酵剂制备;(2)接种发酵;(3)匀浆浸提;(4)过滤澄清;(5)调配均质。
优选的,米曲霉发酵剂制备包括如下步骤:
(1)将10-15g糯米浸泡30-50min后沥干水分,然后121℃灭菌15min;将灭菌后冷却的糯米接种混合菌悬液2-4mL,所述混合菌悬液按照是米曲霉CICC2022和米曲霉CICC40864两个菌株按菌悬液体积比1:2-3的比例混合制备接种混合菌悬液2-4mL;
(2)将步骤(1)制得的接种菌种后的糯米置于湿度为95%的生化培养箱中,培养64-72h;然后糯米置于50-60℃烘箱中烘10-14h后进行粉碎得米曲霉菌粉;
(3)将步骤(2)制得的米曲霉菌粉用无菌水制成浓度为5-10mg/mL米曲霉混合发酵剂。CICC2022米曲霉和CICC40864米曲霉都是保存在中国普通微生物菌种保藏管理中心的菌种,可以市场上购买到。
优选的,接种发酵包括如下步骤:
(1)将10-30mL 10-15%的糖水搅拌后再接种2-4mL浓度为5-10mg/mL的米曲霉混合发酵剂;
(2)将步骤(1)制得的接种后的绿豆皮粉置于温度为25-35℃,湿度为90-95%的生化培养箱中,培养48-72h。
优选的,匀浆浸提包括如下步骤:
(1)将上述方法所制得的发酵好的绿豆皮与无菌水以1:15-25料液比用匀浆仪混匀;
(2)将步骤(1)制得的混合液放超声浸提80-100min。
优选的,过滤澄清包括如下步骤:
(1)将上述方法所制得的混合液用200目食品级尼龙滤网过滤掉绿豆皮残渣。
调配均质包括如下步骤:
(1)将上述方法所制得的澄清混合液加入质量体积比为0.15-0.3%的柠檬酸、2-3%的白砂糖、0.1-0.3%的海藻酸钠混合均匀;
(2)将步骤(1)制得的调味后的澄清混合液在15-25Mpa压力下均质10-30min。
本发明具有的优点和积极效果是:
本发明的绿豆皮发酵饮料的制备方法中,依次经过接种发酵、匀浆、浸提、过滤、调配、均质等步骤,得到一种澄清型谷物发酵饮料。绿豆皮发酵饮料中的总酚含量相比于未发酵的绿豆皮饮料的总酚含量提高45%以上,不溶性膳食纤维含量提高30%以上,并且发酵后饮料的风味物质主要由醇类组成,其次是烃类及酮类,醇类物质的相对含量比未发酵饮料提高了35%左右。这就赋予了绿豆皮发酵饮料特有的醇香和曲香,使得饮料风味独特,营养丰富。
附图说明
图1A为2022米曲霉(酿造酱油)发酵菌种形态B为40864米曲霉(酿酒)发酵菌种形态;
图2为本发明发酵前后绿豆皮饮料风味物质的种类峰图
具体实施方式
实施例1
从市场上购买CICC2022米曲霉和CICC40864米曲霉。
一种绿豆皮发酵饮料的制备方法,包括以下步骤:
(1)接种米曲霉:将绿豆皮粉称5g,加入30mL 10%糖水搅拌均匀,接种2mL浓度为10mg/mL米曲霉混合发酵剂,置于温度为30℃,湿度为90%的生化培养箱中,培养48h,制得发酵绿豆皮粉;
米曲霉混合发酵剂的制备将10g糯米浸泡30min后沥干水分,然后121℃灭菌15min;将灭菌后冷却的糯米接种混合菌悬液2mL,所述混合菌悬液按照是米曲霉CICC2022和米曲霉CICC40864两个菌株按菌悬液体积比1:2的比例混合制备接种混合菌悬液2mL;将上述制得的接种菌种后的糯米置于湿度为95%的生化培养箱中,培养64h;然后糯米置于50-60℃烘箱中烘10h后进行粉碎得米曲霉菌粉;将上述制得的米曲霉菌粉用无菌水制成浓度为5mg/mL米曲霉混合发酵剂。
(2)匀浆浸提:将上述制得的发酵绿豆皮粉按1:15的比例加入无菌水用匀浆仪进行匀浆,超声浸提100min得半成品饮料
(3)过滤澄清:上述制得的半成品饮料用食品级200目尼龙滤网过滤掉绿豆皮残渣得澄清半成品饮料;
(4)调配均质:将上述制得的澄清半成品饮料加入质量体积比为0.3%的柠檬酸、3.0%的白砂糖、0.3%的海藻酸钠混合均匀后倒入压力为20Mpa的均质机均质15min得绿豆皮发酵饮料。
经检测本实施例制得的绿豆皮发酵饮料总酚含量为3289.80mg/L,不溶性膳食纤维含量为36.9mg/L,未发酵的绿豆皮饮料总酚含量为2233.93mg/L,不溶性膳食纤维含量为27.9mg/L,总酚含量提高47.3%,不溶性膳食纤维含量提高32.3%。未发酵的绿豆皮饮料的风味物质主要由烃类组成,其次是酮类及醇类。发酵后风味物质主要由醇类组成,其次是烃类及酮类。发酵后的醇类物质的相对含量比未发酵饮料提高了31.21%。
实施例2
一种绿豆皮发酵饮料的制备方法,包括以下步骤:
(1)接种米曲霉:将绿豆皮粉称5g,加入15mL 12%糖水搅拌均匀,接种3mL浓度为8mg/mL米曲霉混合发酵剂,置于温度为32℃,湿度为92%的生化培养箱中,培养60h,制得发酵绿豆皮粉;
米曲霉混合发酵剂的制备将12g糯米浸泡40min后沥干水分,然后121℃灭菌15min;将灭菌后冷却的糯米接种混合菌悬液3mL,所述混合菌悬液按照是米曲霉CICC2022和米曲霉CICC40864两个菌株按菌悬液体积比1:2.5的比例混合制备接种混合菌悬液3mL;将上述制得的接种菌种后的糯米置于湿度为95%的生化培养箱中,培养68h;然后糯米置于55℃烘箱中烘10h时后进行粉碎得米曲霉菌粉;将上述制得的米曲霉菌粉用无菌水制成浓度为7mg/mL米曲霉混合发酵剂。
(2)匀浆浸提:将上述制得的发酵绿豆皮粉按1:20的比例加入无菌水用匀浆仪进行匀浆,超声浸提90min得半成品饮料
(3)过滤澄清:上述制得的半成品饮料用食品级200目尼龙滤网过滤掉绿豆皮残渣得澄清半成品饮料;
(4)调配均质:将上述制得的澄清半成品饮料加入质量体积比为0.25%的柠檬酸、2.5%的白砂糖、0.2%的海藻酸钠混合均匀后倒入压力为23Mpa的均质机均质12min得绿豆皮发酵饮料。
经检测本实施例制得的绿豆皮发酵饮料总酚含量为3309.20mg/L,不溶性膳食纤维含量为37.4mg/L,未发酵的绿豆皮饮料总酚含量为2233.93mg/L,不溶性膳食纤维含量为27.9mg/L,总酚含量提高48.1%,不溶性膳食纤维含量提高34.1%。未发酵的绿豆皮饮料的风味物质主要由烃类组成,其次是酮类及醇类。发酵后风味物质主要由醇类组成,其次是烃类及酮类。发酵后的醇类物质的相对含量比未发酵饮料提高了38.09%。
实施例3
一种绿豆皮发酵饮料的制备方法,包括以下步骤:
(1)接种米曲霉:取过50目筛的绿豆皮粉末5g,加入10mL 15%糖水搅拌均匀,接种4mL浓度为5mg/mL米曲霉发酵剂,置于温度为35℃,湿度为95%的生化培养箱中,培养72h,制得发酵绿豆皮粉;
米曲霉混合发酵剂的制备将15g糯米浸泡50min后沥干水分,然后121℃灭菌15min;将灭菌后冷却的糯米接种混合菌悬液4mL,所述混合菌悬液按照是米曲霉CICC2022和米曲霉CICC40864两个菌株按菌悬液体积比1:3的比例混合制备接种混合菌悬液4mL;将上述制得的接种菌种后的糯米置于湿度为95%的生化培养箱中,培养72h;然后糯米置于60℃烘箱中烘14h后进行粉碎得米曲霉菌粉;将上述制得的米曲霉菌粉用无菌水制成浓度为10mg/mL米曲霉混合发酵剂。
(2)匀浆浸提:将上述制得的发酵绿豆皮粉按1:25的比例加入无菌水用匀浆仪进行匀浆,超声浸提80min得半成品饮料;
(3)过滤澄清:将上述制得的半成品饮料用食品级200目尼龙滤网过滤掉绿豆皮残渣,得澄清半成品饮料;
(4)调配均质:将上述制得的澄清半成品饮料加入质量体积比为0.15%的柠檬酸、2.0%的白砂糖、0.1%的海藻酸钠混合均匀后倒入压力为25Mpa的均质机均质10min得绿豆皮发酵饮料。
经检测本实施例制得的绿豆皮发酵饮料总酚含量为3357.82±13.61mg/L相比未发酵的提高47.67%,不溶性膳食纤维含量为40.7±3.7mg/L相比未发酵的提高31.72%,发酵后的醇类物质的相对含量比未发酵饮料提高了43.09%。
Claims (5)
1.一种绿豆皮发酵饮料的制备方法,其特征在于,以5-10g过50目筛的绿豆皮粉为原料,将米曲霉混合发酵剂作为发酵剂进行固态发酵,发酵完成后再进行调配,具体步骤包括:
(1)米曲霉混合发酵剂制备;(2)接种发酵;(3)匀浆浸提;(4)过滤澄清;(5)调配均质。
2.根据权利要求1所述一种绿豆皮发酵饮料的制备方法,其特征在于,所述米曲霉混合发酵剂制备包括如下步骤:
(1)将10-15g糯米浸泡30-50min后沥干水分,然后121℃灭菌15min;将灭菌后冷却的糯米接种混合菌悬液2-4mL,所述混合菌悬液是米曲霉CICC2022和米曲霉CICC40864两个菌株按菌悬液体积比1:2-3的比例混合制备;
(2)将步骤(1)制得的接种菌种后的糯米置于湿度为95%的生化培养箱中,培养64-72h;然后糯米置于50-60℃烘箱中烘10-14h后进行粉碎得米曲霉菌粉;
(3)将步骤(2)制得的米曲霉菌粉用无菌水制成浓度为5-10mg/mL米曲霉混合发酵剂。
3.根据权利要求1所述一种绿豆皮发酵饮料的制备方法,其特征在于,接种发酵包括如下步骤:
(1)将5-10g过50目筛的绿豆皮粉加入10-30mL 10-15%的糖水搅拌后再接种2-4mL浓度为5-10mg/mL的米曲霉混合发酵剂;
(2)将上述接种后的绿豆皮粉置于温度为25-35℃,湿度为90-95%的生化培养箱中,培养48-72h。
4.根据权利要求1所述一种绿豆皮发酵饮料的制备方法,其特征在于,匀浆浸提包括如下步骤:
(1)将制得的发酵好的绿豆皮粉与无菌水以1:15-25料液比用匀浆仪混匀;
(2)将步骤(1)制得的混合液超声浸提80-100min。
5.根据权利要求1所述一种绿豆皮发酵饮料的制备方法,其特征在于,调配均质包括如下步骤:
(1)将过滤澄清后的混合液加入质量体积比为0.15-0.3%的柠檬酸、2-3%的白砂糖、0.1-0.3%的海藻酸钠混合均匀;
(2)将步骤(1)制得的调味后的澄清混合液在15-25Mpa压力下均质10-30min。
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