Page 352 - Demo

356 PROCEEDINGS OF INTERNATIONAL SCIENTIFIC CONFERENCE ON APPLIED BIOTECHNOLOGYfrom Ethiopia and Yemen, where people use dried coffee pulps to brew a beverage similar to beer, this drink has a tea-like flavour but a distinctive coffee aroma and notes of fruit, citrus, and cherry [2]. Notably, Cascara tea from Arabica pulps excels in extraction rate, pH, ash content, antioxidant activity, and caffeine content [4] . Producing Cascara tea from Arabica pulps in Son La generates additional income for local farmers and offers an environmentally friendly solution for reusing coffee byproducts. Currently, Cascara tea is typically produced using traditional methods. After harvesting, the coffee pulps are dried and fermented under the sun for 3 to 4 days before consumption. Besides the conventional method, the new technique, which uses microorganisms, mainly lactic acid bacterium, has shown many advantages in many types of research, such as enhancing higher %u201cantioxidant activity. [3]%u201d. This technology uses heterofermentative lactic acid bacteria to speed up fermentation and enhance flavours and quality rather than natural fermentation. A study by Lina Oktaviani et al. in 2020 demonstrated that lactic acid bacterial fermentation not only increases the tea%u2019s phenolic content and antioxidant activity but also decreases the production time and optimizes product quality [3]. Applying lactic acid bacterial fermentation technology indicates a significant potential for producing Cascara tea from Arabica coffee pulps in Son La. This technology optimizes product quality but also creates a sustainable production process. Additionally, lactic acid bacterial fermentation improves the Cascara tea quality and increases production efficiency, making it suitable for industrial-scale applications. The study aims to investigate and evaluate the impact of certain technological factors during lactic acid bacterial fermentation on the quality of Cascara herbal tea in Son La. The results of this study will provide a scientific basis for further