Publisher

UNIDAUNIDA

Journal Indonesian Journal of Applied Research (IJAR)Indonesian Journal of Applied Research (IJAR) Abstract

Diabetes is a degenerative disease that has become a public concern. Several studies have shown that roselle tea extracts can reduce blood glucose levels by improving the pancreatic glands, and Stevia rebaudiana leaf has zero calorie with a sweetness coming from diterpene glycosides (stevioside and rebaudioside-A) which are safely metabolized in the body, so that it can be used as sweetener for diabetics. The purpose of this study was to determine the formula of roselle tea and stevia leaf that is safe for diabetics. Three formulas of ready to drink (RTD) were prepared using 2% (w/v) rosella tea with 0.1, 0.3, and 0.5% (w/v) stevia leaf, then the sensory qualities were analyzed including the red color, sweetness, bitterness, off flavor. The selected formula was RTD made from 2% (w/v) roselle tea and 0.3% (w/v) stevia leaf. The RTD had a little bright red color, pretty sweet, no bitter taste, quite off flavor, and total microbes < 2.5 EAPC (compromise with Indonesian Standard Regulation for fruit juice). Carbohydrate content (Anthrone method) of RTD roselle-stevia and roselle-sugar was 0.1507% and 1.3293%. Effect analysis of RTD roselle-stevia and roselle-sugar on blood glucose levels of healthy patients based on ISO 26642:2010 measured every 30 minutes for 90 minutes and using t-test showed that RTD roselle-stevia did not affect (p>0.05) the increase in blood glucose levels, whereas RTD roselle-sugar did (p<0.05). It can be concluded that RTD containing 2% (w/v) roselle tea and 0.3% (w/v) stevia leaf is safe for diabetics.

Conclusion

Based on the results of the research, the best formulation was selected from sensory quality tests, namely formulation A2 with 2% (w/v) rosella and 0.This formulation exhibited a slightly bright red color, sufficient sweetness, no bitter taste, and a pleasant aroma.Microbial analysis confirmed the formulation met Indonesian standards for fruit drinks, with a carbohydrate content of 0.Furthermore, the formulation did not significantly affect blood glucose levels in healthy patients, indicating its safety for diabetic consumption.

Future Research

Future research should investigate the long-term effects of consuming roselle-stevia RTD on glycemic control and overall health outcomes in diabetic patients, potentially through a randomized controlled trial. Additionally, exploring different extraction methods for both roselle and stevia could optimize the bioactive compound content and enhance the beverages functional properties. Finally, studies focusing on consumer acceptance and preference for various flavor combinations and packaging formats of the roselle-stevia RTD are needed to facilitate its successful commercialization and wider adoption as a healthy beverage option for individuals managing diabetes. These investigations, building upon the current findings, will contribute to a more comprehensive understanding of the potential benefits and market viability of this innovative product.

Metadata

File size	215.47 KB
Pages	9
DMCA	Report