Sensory Evaluation of Brewed Black tea (Camellia sinensissp) and Stevia (Stevia rebaudiana Bert) Leaves. Case Study: Threshold of Phenolic Bitterness Consumer Preference Test

Budianta, Tarsisius Dwi Wibawa, Utomo, Adrianus Rulianto and Raharjo, Sentot Joko (2020) Sensory Evaluation of Brewed Black tea (Camellia sinensissp) and Stevia (Stevia rebaudiana Bert) Leaves. Case Study: Threshold of Phenolic Bitterness Consumer Preference Test. International Advanced Research Journal in Science, Engineering and Technology, 7 (1). pp. 74-81. ISSN 2394-1588

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Abstract

Currently the consumer needs for anti-diabetic products are very large and require answer from healthy food provider answers. Products that are commonly known are tea and stevia. Tea and stevia have advantages as an antioxidant and anti-diabetic. The use of commercially available products is very depended on sensory characteristics which can be accepted by consumers. How much is consumed (food intake) depends on the sensory sensitivity of the consumer. Tea and stevia products are products that contain poly phenols which give a sense of briskness or bitterness. At the time of serving alone, stevia tea and steeping have a certain value, which will be different if brewed simultaneously. The study aims to determine the sensory acceptance threshold value, to steeping a mixture of black tea and dried stevia leaves. The study was conducted using the absolute threshold test, using a proportion of the concentration of stevia black tea between 20:1 to 4:1(w/w) and maximum weight of 2 grams. The mixture was brewed using 200 mL hot water with a temperature of 900 Celsius for 5 minutes. The steeped product was then tested by 80 untrained panelists to find out the absolute threshold for sweet and bitter taste. From the research it was known that the absolute threshold value for sweetness of stevia-black tea was 0.39% (w/v) and bitterness ofstevia - black tea was 0.42% (w/v).

Item Type:	Article
Uncontrolled Keywords:	Black tea, Preference test, Sensory evaluation, Stevia, Threshold
Subjects:	Agriculture and Food Technology
Divisions:	Journal Publication
Depositing User:	Tarsisius Dwi Wibawa Budianta
Date Deposited:	11 Feb 2020 05:55
Last Modified:	24 Jan 2023 03:20
URI:	http://repository.ukwms.ac.id/id/eprint/21505

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