Peer Review HPLC Determination of Caffeine in Coffee Beverage

Fajara, B E P and Susanti, Hari (2017) Peer Review HPLC Determination of Caffeine in Coffee Beverage. [Artikel Dosen]

Text (PEER REVIEW) Peer Review - Susanti - caffeine beverage coffee HPLC.pdf Download (1MB)

Abstract

Abstract. Coffee is the second largest beverage which is consumed by people in the world,
besides the water. One of the compounds which contained in coffee is caffeine. Caffeine has
the pharmacological effect such as stimulating the central nervous system. The purpose of this
study is to determine the level of caffeine in coffee beverages with HPLC method. Three
branded coffee beverages which include in 3 of Top Brand Index 2016 Phase 2 were used as
samples. Qualitative analysis was performed by Parry method, Dragendorff reagent, and
comparing the retention time between sample and caffeine standard. Quantitative analysis was
done by HPLC method with methanol-water (95:5v/v) as mobile phase and ODS as stationary
phasewith flow rate 1 mL/min and UV 272 nm as the detector. The level of caffeine data was
statistically analyzed using Anova at 95% confidence level. The Qualitative analysis showed
that the three samples contained caffeine. The average of caffeine level in coffee bottles of X,
Y, and Z were 138.048 mg/bottle, 109.699 mg/bottle, and 147.669 mg/bottle, respectively. The
caffeine content of the three coffee beverage samples are statistically different (p<0.05). The
levels of caffeine contained in X, Y, and Z coffee beverage samples were not meet the
requirements set by the Indonesian Standard Agency of 50 mg/serving.

Item Type:	Artikel Dosen
Subjects:	Q Science > Q Science (General) R Medicine > R Medicine (General) T Technology > T Technology (General)
Divisi / Prodi:	Faculty of Pharmacy (Fakultas Farmasi) > Pharmacy Doc
Depositing User:	Mrs Hari Susanti
Date Deposited:	21 May 2022 01:13
Last Modified:	21 May 2022 01:14
URI:	http://eprints.uad.ac.id/id/eprint/32303

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