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A Comparative Study of Total Tannin Contents and Antimicrobial Activities in Methanol Extracts of Rhizophoraceae Species Indriaty, Indriaty; Ginting, Binawati; Hasballah, Kartini; Djufri, Djufri
Heca Journal of Applied Sciences Vol. 1 No. 2 (2023): October 2023
Publisher : Heca Sentra Analitika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60084/hjas.v1i2.89

Abstract

Rhizophoraceae is a large true mangrove family that produces mangrove tannins. Tannins have the potential to be used as antimutagenic, anticancer, antimicrobial, and antioxidant agents in the pharmaceutical and medical fields. The aim of the research was to determine the total tannin content, antimicrobial activity, and the correlation between the two in methanol extracts of four plant parts (roots, bark, leaves, and fruit/hypocotyl) from five Rhizophoraceae species, namely Bruguiera cylindrica, Bruguiera gymnorrhiza, Ceriops decandra, Rhizophora apiculata, and Rhizophora mucronata originating from the Langsa mangrove forest, Aceh, Indonesia. Folin Ciocalteu colorimetric method and tannic acid as a standard were used for the total tannin content (TTC) test. The disc diffusion method was used to conduct antimicrobial tests against Escherichia coli, Staphylococcus aureus, and Candida albicans bacteria at a 50% extract concentration. TTC content in Rhizophoraceae ranged from 8.17 ± 1.36 mg TAE/g to 813.35 ± 18.72 mg TAE/g (p < 0.05). The highest levels were found in C. decandra roots (813.35 ±18.72 mg TAE/g), C. decandra bark (704.36 ± 12.11 mg TAE/g), and R. apiculata bark (651.23 ± 2.36 mg TAE/g). The extract has moderate to strong antibacterial activity against gram-positive bacteria S. aureus, with an inhibition zone range of 6.64 ± 0.80 mm -15.02 ± 0.32 mm. The highest antibacterial activity was observed in the inhibition zones for S. aureus bacteria, with C. decandra fruit extract (15.02 ± 0.32 mm), R. apiculata bark (14.78 ± 0.90 mm), and C. decandra leaves (14.44 ± 1.18 mm) exhibiting the highest levels. TTC and antibacterial activity of S. aureus in Rhizophoraceae extracts showed a moderate correlation (Pearson correlation coefficient r = 0.566, p < 0.05). According to the results, it was concluded that Rhizophoraceae has the potential to produce optimal tannins that can be used as antibacterial agents against S. aureus.
Characterization of red algae (Gracilaria verrucosa) on potential application for topical treatment of oral mucosa wounds in Rattus norvegicus Hakim, Rachmi F.; Idroes, Rinaldi; Hanafiah, Olivia A.; Ginting, Binawati; Kemala, Pati; Fakhrurrazi, Fakhrurrazi; Putra, Noviandi I.; Shafira, Ghina A.; Romadhoni, Yenni; Destiana, Khaerunisa; Muslem, Muslem
Narra J Vol. 3 No. 3 (2023): December 2023
Publisher : Narra Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52225/narra.v3i3.422

Abstract

Wound healing in the mouth has its challenges due to masticatory movements and the presence of bacteria that can inhibit its process. The aim of this study was to analyze the contents of red algae (Gracilaria verrucosa) from Indonesia, and its potential as a wound-healing agent for oral wounds using animal model. Red algae content was determined by phytochemical tests and gas chromatography-mass spectroscopy (GC-MS). The wound was made by making an incision on the gingival mucosa of Rattus norvegicus and the parameters assessed were bleeding time, number of fibroblast cells, and time of wound closure. Three doses of G. verrucosa gel were used (2.5%, 5%, and 10%) and the gels were applied twice a day, at 6:00 and 18:00. Application was carried out topically by applying 0.1 ml of gel to the incision wound using a 1 mL syringe. Our phytochemical test indicated that the G. verrucosa contained alkaloids, steroids, flavonoids, and phenols. The dominant contains of the G. verrucosa were glycerol (36.81%), hexadecenoic acid (20.74%), and cholesterol (7.4%). The hemostasis test showed that the 2.5% G. verrucosa extract gel had the shortest bleeding time, 33.98±5.33 seconds. On the seventh day of the initial proliferation phase, the number of fibroblasts was not significantly different among groups. On day 14, the number of fibroblasts was only significantly different between 10% G. verrucosa and untreated group (p=0.007). On day 28, however, both 5% and 10% G. verrucosa were significantly higher compared to untreated group, both had p=0.010. Daily clinical examination showed that animals that were given 2.5% and 5% of G. verrucosa extract gel experienced wound closure on day 10. Animals treated with 10% of extract gel, all wounds healed on day 9. This study suggested that G. verrucosa extract could accelerate wound closure and wound healing.
Antioxidant ativity of dichloromethane extract from cocoa pod husk (Theobroma cacao L.) FEBRINA, RESA VERNIA; YAHYA, MUSTANIR; GINTING, BINAWATI; SAIDI, NURDIN
Jurnal Natural Volume 24 Number 2, June 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i2.36174

Abstract

Theobroma cacao L. is a plant that is reported to have strong antioxidant potential. A study was carried out to determine the antioxidant activity of dichloromethane extract of cocoa pod husk using 1,1-diphenyl-2-picrylhydrazyl (DPPH). The cocoa pod husk was macerated using n-hexane, ammonia-dichloromethane, and methanol. The TCD extract of cocoa pod husk showed the lowest IC50 value of 14.59 0.54 ppm based on the DPPH inhibition assay. The dichloromethane extract was isolated by gravity column chromatography with Silica gel G60 as the stationary phase andn-hexane: ethyl acetate as the mobile phase (gradient elution system). Fractions with identical staining patterns were combined into six fractions (TCD 1-TCD 6). The TCD 6 showed the lowest IC50 value of 127.05 0.54 ppm according to the DPPH inhibition assay. Based on the TLC results, TCD 4 was further isolated and four fractions (TCD 4.1 to TCD 4.4) were obtained. The TCD 4.4 had the lowest IC50 value (38.66 0.96 ppm).The TCD extract showed the presence of the dominant compound, -sitosterol, as determined by GC-MS analysis.
The validation of urea determination in saliva using optical urea biosensor with p-dimethylaminobenzaldehyde (DMAB) reagent ALDIANSYAH, TEUKU; SAFITRI, EKA; GINTING, BINAWATI; NAZARUDDIN, NAZARUDDIN; SUHUD, KHAIRI; SALEHA, SITTI; NURHAYATI, NURHAYATI; NAZARUDDIN, SALSABILLA LATANSA; AFIFI, MUHAMMAD RIDHO; NURHAIDA, NURHAIDA
Jurnal Natural Volume 25 Number 1, February 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v25i1.41251

Abstract

The validation of urea determination in saliva using the biosensor method and the p-dimethylaminobenzaldehyde (DMAB) method has been successfully conducted. Anthocyanin compounds from Chatarantus roseus flowers were extracted using the maceration method with methanol as the solvent, yielding a total of 22.60% with a total concentration of 6.01 mg/L. The obtained extract was subjected to qualitative anthocyanin testing, showing a positive result was indicated by the formation of a reddish color and quantitative testing with the formation of a faded yellow color. The maximum wavelength ( max) of anthocyanin was 664 nm with an absorbance of 0.674. The saliva samples were obtained from three different ages i.e: children, teenagers, and adults. During the saliva collection procedure, participants were instructed to abstain from consuming any food or beverages, with the exception of water, for a minimum of 1 hour prior to sample collection. All samples were stored in a freezer at 4-8C until needed for analysis. Linearity test results were assessed using a calibration curve, yielding a coefficient of determination (R) of 0.978 with a sensitivity of 0.033 for the biosensor and an R of 0.975 with a sensitivity of 0.685 for DMAB. The limit of detection (LOD) values were determined as 7.203 10 M for the biosensor and 6.984 10 M for DMAB, while the limit of quantification (LOQ) values were 2.182 10 M and 2.116 10 M, respectively. Statistical analysis using a t-test showed tcalculated = 1.314, compared to ttable = 4.302, indicating that tcalculated ttable. This result suggests no statistically significant difference between the biosensor and DMAB methods, confirming that the biosensor method is comparable in performance to the DMAB method. Additionally, urea concentration measurements showed that adult samples exhibited the highest urea levels among the tested samples, which may indicate an association with potential health risks, including dental caries, kidney failure, and liver damage.
AKTIVITAS ANTIBAKTERI EKSTRAK DAN FRAKSI N-HEKSANA KULIT BUAH KAKAO (Theobroma cacao L.) Purnama, Agnia; Ginting, Binawati; Yahya, Mustanir; Afifi, Muhammad Ridho; Maghfirah, Ruhul; Farida, Mutia; Hamdiyati, Hamdiyati
Lantanida Journal Vol 13 No 1 (2025): January-June 2025
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v13i1.29989

Abstract

This study aims to evaluate the antibacterial activity of the n-hexane extract and fraction of cocoa pod husk against Staphylococcus aureus. The antibacterial was tested using the paper disc diffusion method. The results showed that the extract inhibited bacterial with inhibition zones of 7.13 ± 0.29; 8.58 ± 0.14; 9.60 ± 0.87; and 10.97 ± 0.08 mm at concentrations of 1%, 5%, 10%, and 20%, respectively. The fractionation process produced 9 fractions and the 9th fraction showed the greatest inhibitory activity with inhibition zone diameters of 7.42 ± 0.03; 9.22 ± 0.03; 10.43 ± 0.03; and 11.83 ± 0.03 mm at concentrations of 1%; 5%; 10%; and 20% respectively. Phytochemical analysis and thin-layer chromatography (TLC) showed the presence of terpenoid and steroid compounds. Based on the antibacterial activity exhibited by the extract and fraction, this plant shows potential to be developed as a source of natural antibacterials.