POTENSI SARI BUAH PIR YA (Pyrus bretschneideri) SEBAGAI IMUNOSTIMULAN TERHADAP COVID-19 MELALUI UJI VITAMIN C DENGAN METODE SPEKTOFOTOMETRI UV-Vis

Wahyu, Novie Ardana (2021) POTENSI SARI BUAH PIR YA (Pyrus bretschneideri) SEBAGAI IMUNOSTIMULAN TERHADAP COVID-19 MELALUI UJI VITAMIN C DENGAN METODE SPEKTOFOTOMETRI UV-Vis. Diploma thesis, Sekolah Tinggi Ilmu Kesehatan Nasional.

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Abstract

Ya pear (Pyrus bretschneideri) is a type of fruit that is sold in Indonesia and is widely consumed by the public. Ya pear (Pyrus bretschneideri) contains vitamin C which has antioxidant and immunostimulating activity. The aims of the researcher was to determine the level of vitamin C in ya pear juice (Pyrus bretschneideri) by UV-Vis Spektrophotometry. The ya pears that have been obtained are mashed using a juice extractor. The preparation results obtained were used for qualitative analysis with color reaction using KMnO4, Iodine, FeCl3 and, AgNO3 reagents and the specificity of the analysis method. The ya pear was analyzed Quantitatively by UV-Vis spectrophotometry at a maximum wavelength of 264 nm. The results of the qualitative analysis showed that ya pears were positive for vitamin C. The results of quantitative analysis showed that the average level of vitamin C in ya pear juice was 0,00467% ± 0,00005 with a % KV of 1,1922%.

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