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SCREENING AND CHARACTERIZATION OF LACTIC ACID BACTERIA IN MODIFIED TEPACHE USING LOCAL RAW MATERIALS |
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| รหัสดีโอไอ | |
| Creator | Throngvid Hongsaprabhas |
| Title | SCREENING AND CHARACTERIZATION OF LACTIC ACID BACTERIA IN MODIFIED TEPACHE USING LOCAL RAW MATERIALS |
| Contributor | Panya Chairattanaphanich, Piyawadee Saraphirom, Kusumwadee Thancharoen, Kunnaree Khongsri, Songklot Phonphuak |
| Publisher | Pibulsongkram Rajabhat University |
| Publication Year | 2567 |
| Journal Title | Life Sciences and Environment Journal |
| Journal Vol. | 25 |
| Journal No. | 2 |
| Page no. | 466-480 |
| Keyword | lactic acid bacteria, tepache, fermented fruit, probiotic |
| URL Website | https://ph01.tci-thaijo.org/index.php/psru/index |
| Website title | Life Sciences and Environment Journal |
| ISSN | 2773-9201 |
| Abstract | Tepache, a traditional Mexican beverage made from fermented pineapple, is a popular non-alcoholic drink with growing commercial potential. This study aimed to modify the tepache formulation and screen for lactic acid bacteria (LAB) in the modified product. The optimized formula included kefir starter (5%), pineapple (20%), yam bean juice (30%), purple dragon fruit (10%), mangosteen (5%), apple (10%), sugar (10%), and water (10%) by volume. Fermentation was carried out under anaerobic conditions for 48 hours. Key parameters, including pH and total soluble solids (TSS), were monitored every 6 hours, alongside LAB screening and characteriza-tion. The pH decreased from 4.51 to 4.04, while TSS ranged from 12.13% to 9.87% (w/v) over the fermentation period. Microbial analysis showed an increase in cell density from 2.30 × 108 to 9.02 × 108 cells/mL and colony counts rising from 4.33 to 66.67 CFU/mL. Screening identified nine LAB isolates, including 4 cocci-shaped gram-positive and 5 rod-shaped gram-positive isolates, all catalase-negative. This study highlights the potential of modified tepache as a source of beneficial LAB strains for functional food applications. |
