Das Rohit, Tamang Buddhiman, Najar Ishfaq Nabi, Bam Marngam, Rai Prabal Khesong
Department of Microbiology, School of Life Sciences, Sikkim University, 6th Mile, Samdur, Tadong, Gangtok, 737102, Sikkim, India.
Fermentation and Microbial Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, 195016, Jammu & Kashmir, India.
Heliyon. 2024 Oct 16;10(20):e39500. doi: 10.1016/j.heliyon.2024.e39500. eCollection 2024 Oct 30.
This study investigates the diverse fungal community and their probiotic functions present in ethnic fermented bamboo shoots of Arunachal Pradesh. Among 95 yeast isolates, 13 demonstrated notable probiotic attributes. These included growth at pH 3, bile tolerance, autoaggregation, co-aggregation, hydrophobicity, lysozyme tolerance and antimicrobial activity. Confirmation of some of the probiotic properties through specific primers enabled the detection of genes associated with acid and bile tolerance, antimicrobial activity, and adhesion. Probiotic yeasts were finally identified based on D1 and D2 sequences of large ribosomal subunit as (BEP1, KGM1_3, NHR3), (GEP7), (ES1_2, EB1_2, EEGM2_4, GEP2, NEK9), (HD1_1), (NHR12), (BEP2), and (NEP2). Fungal amplicon sequencing highlighted the predominance of Ascomycetes, particularly and genera. In this study we have perfomed a culture dependent isolation and probiotic study of yeasts and culture independent analysis of the fungal community present during the fermentation of bamboo shoots of Arunachal Pradesh which provides information about the beneficial properties of bamboo shoots as the reservoir of probiotic microorganisms.
本研究调查了阿鲁纳恰尔邦民族发酵竹笋中多样的真菌群落及其益生菌功能。在95株酵母分离株中,有13株表现出显著的益生菌特性。这些特性包括在pH 3条件下生长、耐胆汁、自聚集、共聚集、疏水性、耐溶菌酶和抗菌活性。通过特异性引物对部分益生菌特性进行确认,能够检测到与耐酸、耐胆汁、抗菌活性和黏附相关的基因。最终,根据大核糖体亚基的D1和D2序列,将益生菌酵母鉴定为(BEP1、KGM1_3、NHR3)、(GEP7)、(ES1_2、EB1_2、EEGM2_4、GEP2、NEK9)、(HD1_1)、(NHR12)、(BEP2)和(NEP2)。真菌扩增子测序突出了子囊菌的优势,尤其是 和 属。在本研究中,我们对阿鲁纳恰尔邦竹笋发酵过程中存在的酵母进行了基于培养的分离和益生菌研究,并对真菌群落进行了非培养分析,这为竹笋作为益生菌微生物库的有益特性提供了信息。