CN111053173A - 一种植物乳杆菌发酵雪花梨汁饮品的制备工艺 - Google Patents
一种植物乳杆菌发酵雪花梨汁饮品的制备工艺 Download PDFInfo
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Abstract
本发明公开了一种利用植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁饮品的制备工艺,包括以下步骤:(1)将植物乳杆菌(lactobacillus plantarum)接种至液体种子培养基中活化,得到含有菌体的种子液;(2)将雪花梨洗净,切块,迅速榨汁,得到雪花梨汁;(3)取鲜榨雪花梨汁,加入蔗糖,灭菌,冷却,接入植物乳杆菌(lactobacillus plantarum),得到种子培养液,进行发酵培养,发酵结束,待发酵梨汁自然沉降,取上层清液,即得植物乳杆菌(lactobacillus plantarum)发酵梨汁饮品。所得饮品口感酸甜可口,无不良气味。测得其发酵植物乳杆菌(lactobacillus plantarum)活菌数为1.12×1011CFU/mL。有机酸总量从7.81g/L增加到21.46g/L,其中乳酸含量增加明显。本发明提供了一种具有抗氧化能力的活菌型饮品生产方法。
Description
技术领域
本发明涉及一种植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁饮品的制备工艺,属于食品生产技术领域。
背景技术
当前市场上果汁饮品种类繁多,但有些饮品营养缺失,大部分不易被人体吸收。随着人们生活水平的提高,消费者对健康的要求越来越严格,大部分市售果汁无法满足人们对健康饮食的需求。而植物乳杆菌(lactobacillus plantarum)可通过改善其肠内微生物平衡促进食物消化,提高营养的摄取。植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁抗氧化功能提高,有益于人的身心健康。此产品利用植物乳杆菌(lactobacillus plantarum)合理搭配梨汁进行发酵,经发酵后的梨其寒性会减弱,同时还增加梨汁中的有益成分并改变梨汁风味。使梨得到了深加工,即便于储存,降低冷库费用,又能提高梨产品的附加值,产生一些更利于人体吸收的菌体代谢产物,使其产品的受众面更加广泛,产品的销量得到提高,又可以更好的解决梨的储藏和能耗高的问题。因此将植物乳杆菌(lactobacillus plantarum)与果汁合理结合,开发一种口感好,易于吸收的具有抗氧化功效的果汁饮品具有较好的市场前景。
发明内容
本发明的目的是提供一种植物乳杆菌(lactobacillus plantarum)发酵雪花梨饮品的制备工艺,使植物乳杆菌(lactobacillus plantarum)与梨汁有效结合,协同作用,提高营养物质的吸收率,使其功效价值得到更好的开发与利用。
具体的,本发明的制备工艺包括以下步骤:
(1)将斜面保藏的市售植物乳杆菌(lactobacillus plantarum)接入液体培养基中,置于培养箱恒温培养;
其适宜的培养条件为:培养温度为36-38℃,培养时间为16-18h,得到含有菌体的种子液;
其中,液体种子培养基的组成为:大豆蛋白胨2.5-4.0 g,蔗糖2.0-4.0 g,含糖量10-15%的雪花梨鲜榨梨汁10-20ml,加蒸馏水配制成100 mL,调pH为6.8-7.0,灭菌;
其中,适宜的灭菌温度为:105-111℃,灭菌时间15-30min;
(2)挑选新鲜无病虫害的雪花梨洗净榨汁、调配、灭菌、冷却;
雪花梨汁中加入一定量的蔗糖,水浴灭菌,灭菌完成后冷却至25-35℃,作为雪花梨发酵培养基;
其中,雪花梨汁中加入一定量的蔗糖,使蔗糖终浓度(质量浓度m/v)达到10-20%;然后75-85℃水浴灭菌,时间10-15min;
(3)将步骤(1)所得的种子液接入雪花梨发酵培养基中培养、发酵,将发酵梨汁自然沉降,取上层清液,即得植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁饮品。
其中,种子液接种量为3-6%,培养温度35-37℃,发酵时间46-51h。
所得饮品口感酸甜可口,无不良气味。经检测,其发酵植物乳杆菌(lactobacillus plantarum)活菌数为1.12×1011CFU/mL,有机酸总量从7.81g/L增加到21.46g/L,其中乳酸含量增加明显。植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁与未发酵雪花梨汁相比:多酚含量从185.31mg/L增加到229.80mg/L上升19.36%;黄酮含量从631.23mg/L增加到852.20mg/L上升25.93%。
本发明提供了一种具有抗氧化能力的活菌型饮品生产方法。
本发明的原理:益生菌发酵果蔬汁指利用益生菌发酵新鲜果蔬而成的饮品。本发明提供了一种通过植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁而成的一种功能性饮品的方法。发酵过程中产生的有机酸、醛类、醇类和羧酸类等芳香成分,增加果蔬汁的口感风味;同时植物乳杆菌(lactobacillus plantarum)发酵过程中可能会引起某些植物细胞壁降解,促进有效成分及抗氧化物质的释放,增强果蔬汁营养价值。利用植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁可明显增强其抗氧化效果。其功能性物质主要包括有机酸、多酚类以及黄酮类等物质。本发明为一种具有抗氧化性能的活菌型饮品提供了工艺方法。
本发明取得以下有益效果:
通过在雪花梨汁中添加市售植物乳杆菌(lactobacillus plantarum)进行发酵培养,发明一种活菌型梨汁饮品,且测得发酵雪花梨汁中植物乳杆菌(lactobacillus plantarum)活菌数为1.12×1011CFU/mL。产品测得:有机酸总量从7.81g/L增加21.46g/L,其中乳酸含量增加明显。植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁与未发酵雪花梨汁相比:多酚含量从185.31mg/L增加到229.80mg/L上升19.36%;黄酮含量从631.23mg/L增加到852.20mg/L上升25.93%。
具体实施方式
下面结合具体实施例对本发明作进一步详细说明。
实施例1
(1)将斜面保藏的市售植物乳杆菌(lactobacillus plantarum)接入液体种子培养基中,置于培养箱中恒温培养;
其适宜培养条件为:培养温度为36℃,培养时间为16h。得到含有菌体的种子液;
其中,液体种子培养基的组成为:大豆蛋白胨2.5g,蔗糖2.0g,含糖量10-15%的雪花梨鲜榨梨汁10ml,加蒸馏水配制成100 mL,调pH为7.0灭菌。
其中,适宜的灭菌温度为:105℃;灭菌时间15min。
(2)挑选新鲜无病虫害的雪花梨洗净榨汁、调配、灭菌、冷却;
雪花梨汁中加入一定量的蔗糖,使蔗糖终浓度(质量浓度m/v)达到13%,然后水浴灭菌,灭菌完成后冷却至25℃,作为雪花梨发酵培养基;
其中,雪花梨汁中蔗糖的加入量是雪花梨汁质量的10%;75℃水浴灭菌,时间10min;
(3)将步骤(1)所得的种子液接入雪花梨发酵培养基中培养、发酵,将发酵梨汁自然沉降,取上层清液,即得植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁饮品。
其中,种子液接种量为6%,培养温度35℃,发酵时间48h。
所得饮品口感略酸,无不良气味。经检测,其发酵植物乳杆菌(lactobacillus plantarum)活菌数为9.32×1010CFU/mL,有机酸总量从7.81g/L增加到14.47g/L,其中乳酸含量增加明显。植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁与未发酵雪花梨汁相比:多酚含量从185.31mg/L增加到208.80mg/L上升11.25%;黄酮含量从631.23mg/L增加到732.20mg/L上升13.79%。
实施例2
(1)将斜面保藏的市售植物乳杆菌(lactobacillus plantarum)接入液体培养基中,置于培养箱恒温培养;
其适宜的培养条件为:培养温度为37℃,培养时间为16h,得到含有菌体的种子液;
其中,液体种子培养基的组成为:大豆蛋白胨3.0g,蔗糖3.0 g,含糖量10-15%的雪花梨鲜榨梨汁15ml,加蒸馏水配制成100 mL,调pH为7.0灭菌;
其中,适宜的灭菌温度为:105℃,灭菌时间20min;
(2)挑选新鲜无病虫害的雪花梨洗净榨汁、调配、灭菌、冷却;
雪花梨汁中加入一定量的蔗糖,使蔗糖终浓度(质量浓度m/v)达到15%,然后水浴灭菌,灭菌完成后冷却至35℃,作为雪花梨发酵培养基;
其中,雪花梨汁中蔗糖的加入量是雪花梨汁质量的15%;75℃水浴灭菌,时间10min;
(3)将步骤(1)所得的种子液接入雪花梨发酵培养基中培养、发酵,将发酵梨汁自然沉降,取上层清液,即得植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁饮品。
其中,种子液接种量为3%,培养温度36℃,发酵时间46h。
所得饮品口感优良,无不良气味。经检测,其发酵植物乳杆菌(lactobacillus plantarum)活菌数为2.15×1010CFU/mL,有机酸总量从7.81g/L增加到20.21g/L,其中乳酸含量增加明显。植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁与未发酵雪花梨汁相比:多酚含量从185.31mg/L增加到215.80mg/L上升14.13%;黄酮含量从631.23mg/L增加到793.13mg/L上升20.41%。
实施例3
(1)将斜面保藏的市售植物乳杆菌(lactobacillus plantarum)接入液体培养基中,置于培养箱恒温培养;
其适宜的培养条件为:培养温度为37℃,培养时间为16h,得到含有菌体的种子液;
其中,液体种子培养基的组成为:大豆蛋白胨4.0 g,蔗糖4.0 g,含糖量10-15%的雪花梨鲜榨梨汁20ml,加蒸馏水配制成100 mL,调pH为6.9灭菌;
其中,适宜的灭菌温度为: 111℃,灭菌时间15min;
(2)挑选新鲜无病虫害的雪花梨洗净榨汁、调配、灭菌、冷却;
雪花梨汁中加入一定量的蔗糖,使蔗糖终浓度(质量浓度m/v)达到18%,然后水浴灭菌,灭菌完成后冷却至35℃,作为雪花梨发酵培养基;
其中,雪花梨汁中蔗糖的加入量是雪花梨汁质量的20%;75℃水浴灭菌,时间10min;
(3)将步骤(1)所得的种子液接入雪花梨发酵培养基中培养、发酵,将发酵梨汁自然沉降,取上层清液,即得植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁饮品。
其中,种子液接种量为6%,培养温度37℃,发酵时间51h。
所得饮品口感酸甜可口,无不良气味。经检测,其发酵植物乳杆菌(lactobacillus plantarum)活菌数为1.12×1011CFU/mL,有机酸总量从7.81g/L增加到21.46g/L,其中乳酸含量增加明显。植物乳杆菌(lactobacillus plantarum)发酵雪花梨汁与未发酵雪花梨汁相比:多酚含量从185.31mg/L增加到229.80mg/L上升19.36%;黄酮含量从631.23mg/L增加到852.20mg/L上升25.93%。
上述实例中,培养基组成中各组分的含量表述指的是质量/体积浓度。
上述实例中,发酵所用菌株皆为植物乳杆菌(lactobacillus plantarum)。
Claims (6)
1.一种植物乳杆菌发酵雪花梨汁饮品的制备工艺,其特征在于包括以下步骤:
(1)将斜面保藏的市售植物乳杆菌接入液体种子培养基中,置于培养箱恒温中培养,得到含有菌体的种子液;
其中,液体种子培养基的组成为:大豆蛋白胨2.5-4.0 g,蔗糖2.0-4.0 g,含糖量10-15%的雪花梨鲜榨梨汁10-20ml,加蒸馏水配制成100 mL,调pH为6.8-7,灭菌;
(2)挑选新鲜无病虫害的雪花梨洗净榨汁、调配、灭菌、冷却;
雪花梨汁中加入一定量的蔗糖,水浴灭菌,灭菌完成后冷却至25-35℃,作为雪花梨发酵培养基;
(3)将步骤(1)所得的种子液接入雪花梨发酵培养基中培养、发酵,待发酵梨汁自然沉降,取上层清液,即得植物乳杆菌发酵雪花梨汁饮品。
2.根据权利要求1所述的制备工艺,其特征在于步骤(1)中,培养条件为:培养温度36-38℃,培养时间为16-18h。
3.根据权利要求1所述的制备工艺,其特征在于步骤(1)中,液体种子培养基灭菌条件为:灭菌温度105-111℃,灭菌时间15-30min。
4.根据权利要求1所述的制备工艺,其特征在于:步骤(2)中雪花梨汁蔗糖浓度10-20%。
5.根据权利要求1所述的制备工艺,其特征在于步骤(2)中灭菌条件为:75-85℃水浴灭菌,时间10-15min。
6.根据权利要求1所述的制备工艺,其特征在于步骤(3)中种子液接种量为3-6%,培养温度35-37℃,发酵时间46-51h。
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| CN114246307A (zh) * | 2021-12-31 | 2022-03-29 | 河南省农业科学院园艺研究所 | 一种发酵型梨膏及其制备方法 |
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