@article {1935, title = {Phytochemical Analysis and Antioxidant Activity of Water Hyacinth Flowers (Eichhornia Crassipes) Extract}, journal = {Pharmacognosy Journal}, volume = {14}, year = {2022}, month = {January 2023}, pages = {955-957}, type = {Research Article }, chapter = {955}, abstract = {

The purpose of this research was to know about phytochemical compounds and antioxidant activity of water hyacinth flowers extract and its potential use as a natural antioxidant. Data analysis was performed descriptively. Research consisted of several stages including sampling, sample preparation, sample extraction, yield of extract, phytochemical analysis (phenols, tannins, alkaloids, flavonoids and saponins), antioxidant activity test with DPPH method and reducing power. The results showed that extracts yield of water hyacinth flowers with n-hexane solvent was 4.95\%, ethyl acetate solvent was 1.69\%, and highest extracts yiled obtained from methanol was 26.06\%. Results of phytochemical compounds analysis showed positive results for phenolic compounds, tannins, flavonoids and saponins. Result of antioxidant activity with DPPH method interpreted within parameters of IC50. IC50 of Hyacinth flower extract were 1085.31 ppm for n-hexane, 950.71 ppm for ethyl acetate and 35.83 ppm for methanol. Small IC50 showed that higher antioxidant activity.

}, keywords = {Antioxidant, Phytochemical, Reducing ability., Water Hyacinth Flowers}, doi = {10.5530/pj.2022.14.196}, author = {Ace Baehaki and Shanti Dwita Lestari and Wiwira Agustina and Sintya Dwika Putri} } @article {1378, title = {Proximate Composition and Antioxidant Activities of Vegetable Milk from Lotus Seeds (Nolumbo nucifera)}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {March 2021}, pages = {427-433}, type = {Original Article}, chapter = {427}, abstract = {

This study aims to proximate composition and antioxidant activities of vegetable milk from lotus seeds (Nolumbo nucifera). The research method in this study used a randomized block design with 3 levels of treatment with 3 repetitions, the treatments used were: A0 = 100\% soybean (Control), A1 = boiling temperature 80$^{0}$C, A2 = boiling temperature 90$^{0}$C, A3 = boiling temperature 100$^{0}$C, B1 = boiling time 10 min, B2 = boiling time 30 min and B3 = boiling time 50 min. The test parameters carried out were proximate composition (water, ash, protein, fat, carbohydrates, and antioxidants) and antioxidant activiy. The results showed the ash content of the lotus seed until the boiling time of 90 min increased, but when the temperature was increased to 100$^{0}$C, the ash content decreased. The fat content of lotus seed milk decreased with increasing boiling time. The protein of vegetable milk from lotus seeds tend to increase with the duration of boiling. The result showed the soy milk has the highest activity (control). For lotus seed milk, the highest activity was in lotus seed milk with boiling temperature treatment of 80$^{0}$C and boiling time for 10 min.

}, keywords = {Antioxidant, Lotus seeds, Nolumbo nucifera, Proximate, Vegetable Milk}, doi = {10.5530/pj.2021.13.54}, author = {Ace Baehaki and Rinto and Muhammad Hendri and Sabri Sudirman and Jeny Pusphyta Buana} } @article {1179, title = {Antidiabetic Activity with N-Hexane, Ethyl-Acetate and Ethanol Extract of Halodule uninervis Seagrass}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {June 2020}, pages = {805-808}, type = {Original Article}, chapter = {805}, abstract = {

The purpose of this research was to observe the antidiabetic activity from N-hexane, ethylacetate and ethanol extract of Halodule uninervis seagrass. The antidiabetic activity with extract concentrations of 125 ppm, 250 ppm, 500 ppm, 1000 ppm and 2000 ppm from seagrass extract with ethanol solvent showed that it had the ability as an anti-diabetic agent stronger than seagrass extract with n-hexane and ethyl acetate solvents. Calculation of IC50 of Halodule uninervis seagrass with ethanol extract was 74.99 ppm and ethyl acetate was 1,517,05 ppm. Glukobay as control was 0.27 ppm.

}, keywords = {Antidiabetic, Extract, Haludule uninervis, Seagrass}, doi = {10.5530/pj.2020.12.115}, author = {Ace Baehaki and Herpandi and Susi Lestari and Muhammad Hendri and Febri Ariska} }