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Isolation, Identification, and Characterization of Phytase Producing Probiotic Lactic Acid Bacteria from Neonatal Fecal Samples Having Dephytinization Activity
Food Biotechnology ( IF 1.8 ) Pub Date : 2020-04-02 , DOI: 10.1080/08905436.2020.1746332
Bhawna Sharma 1 , Geeta Shukla 1
Affiliation  

ABSTRACT Phytic acid, the main phosphate storage component of plant-based diet, is one of the prime causes of micronutrient deficiency in vegetarians due to the formation of non-degradable cation-phytic acid complex in gastrointestinal tract of monogastric animals that are devoid of phytase enzyme. Therefore, the present study was designed to isolate phytase producing probiotic from neonatal feces which may enhance the bioavailability of phosphorous micronutrient. Experimentally, 13 phytase producing lactic acid bacteria (LAB) were isolated from 28 neonatal fecal samples and characterized both phenotypically and for probiotic attributes. Among these, Isolate 5b exhibited potent probiotic potential with significant (p < .01) phytase activity (4.55 U/mL) and was identified phylogenetically using both 16S rRNA and MALDI-TOF MS analysis as Pediococcus acidilactici BNS5B. Interestingly, it was found that phytase from P. acidilactici BNS5B significantly dephytinized phytic acid from modified diet (96.59%) and brown bread (88.89%) after 15 min of phytase treatment at 37°C. Therefore, this provides an opportunity to develop P. acidilactici BNS5B as a probiotic to be used as a supplement in feed/food of monogastric animals and humans. This also provides the rationale for further in vivo studies to use phytase producing probiotic in relation to maintaining and improving health.

中文翻译:

从具有脱植酸活性的新生儿粪便样品中分离、鉴定和表征产生植酸酶的益生菌乳酸菌

摘要 植酸是植物性饮食中主要的磷酸盐储存成分,由于在缺乏植酸酶的单胃动物的胃肠道中形成不可降解的阳离子-植酸复合物,因此是素食者微量营养素缺乏的主要原因之一。酶。因此,本研究旨在从新生儿粪便中分离出产植酸酶的益生菌,这可能会提高磷微量营养素的生物利用度。实验上,从 28 份新生儿粪便样本中分离出 13 种产生植酸酶的乳酸菌 (LAB),并对其表型和益生菌属性进行了表征。其中,分离株 5b 表现出强大的益生菌潜力,具有显着的 (p < .01) 植酸酶活性 (4. 55 U/mL) 并使用 16S rRNA 和 MALDI-TOF MS 分析在系统发育上鉴定为乳酸片球菌 BNS5B。有趣的是,发现来自 P. acidilactici BNS5B 的植酸酶在 37°C 下用植酸酶处理 15 分钟后显着去除来自改良饮食 (96.59%) 和黑面包 (88.89%) 的植酸。因此,这为开发乳酸杆菌 BNS5B 作为益生菌提供了机会,用作单胃动物和人类饲料/食物的补充剂。这也为进一步体内研究以使用产生植酸酶的益生菌来维持和改善健康提供了基本原理。89%) 在 37°C 下进行 15 分钟的植酸酶处理后。因此,这为开发乳酸杆菌 BNS5B 作为益生菌提供了机会,用作单胃动物和人类饲料/食物的补充剂。这也为进一步体内研究以使用产生植酸酶的益生菌来维持和改善健康提供了基本原理。89%) 在 37°C 下进行 15 分钟的植酸酶处理后。因此,这为开发乳酸杆菌 BNS5B 作为益生菌提供了机会,用作单胃动物和人类饲料/食物的补充剂。这也为进一步体内研究以使用产生植酸酶的益生菌来维持和改善健康提供了基本原理。
更新日期:2020-04-02
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