Chitosan is a modified carbohydrate polymer obtained from the deacetylation of chitin and has good and unique characteristics, including its ability to be biodegradable, biocompatible, and nontoxic. The purpose of this study was to manufacture chitosan from freshwater lobster shells formulated in the form of a hand sanitizer gel that is stable and determine its antibacterial activity against Escherichia coli and Staphylococcus aureus. The chitosan obtained was then made into hand sanitizer gel preparations with concentrations of 1.5%, 3%, and 4.5%, and then an evaluation test was carried out on the hand sanitizer gel preparation, as well as antibacterial testing against E. coli and S. aureus. The results showed that the hand sanitizer preparation in the organoleptic test did not show any change in odor, shape, and color. The homogeneity test showed the absence of coarse granules. The results of the pH testing confirmed that the pH of the preparation was still within the permitted criteria limits. The dispersion test also showed the average is in the range of 5-7 cm so that the formula meets the requirements. The results of the antibacterial activity test of the chitosan hand sanitizer gel showed that it can inhibit E. coli bacteria with the best inhibition zone obtained at a concentration of 4.5% at 8.8 mm and S. aureus with the best inhibition zone at 10 mm.
Moringa leaf is a plant that has many uses that comes from the family Moringaceae and it is a tropical plant that is familiar to Indonesian people. Pharmacologically, this plant extract is reported to have antimicrobial and fungicide and it is rich in antioxidants. This metabolite compound contained in Moringa leaves has the potential as an antioxidant, antibacterial, functional and others. This study aims to determine the simplicia characterization of Moringa leaves and to determine the secondary metabolites contained in Moringa leaves, both Moringa leaf powder and Moringa leaf extract. The method of this research is experimental including the simplicia making and ethanol extract of Moringa leaves by maceration method, simplicia characterization and phytochemical screening. The results of the simplicia characterization of Moringa leaves for ethanol soluble extract content was 10,9% and water-soluble extract content was 15,8%, ash content was 9,6% and acid insoluble ash content was 0,6% and water content was 8%. The results of this study also showed that the simplicia powder and ethanol extract of Moringa leaves contained flavonoid, tannin, alkaloid, steroid and saponin.
Clove flower (Eugenia aromatica L.) is a plant from the Myrtaceae family, the compounds contained in clove flowers are flavonoids, tannins, alkaloids, and saponins that can function as antibacterial. In addition, clove flowers also function as analgesic, anti-inflammatory, antimicrobial, antiviral, antifungal, antiseptic, antispasmodic, antiemetic, stimulant, and local anesthetic. The purpose of this study was to determine does clove flower extract (Eugenia aromatica L.) could be used as a hand sanitizer gel preparation. Clove flower simplicia powder was extracted with ethanol 96% by maceration. The extract obtained was then screened for phytochemicals, then formulated in the form of a hand sanitizer gel, by adding clove flower extract to each formula with different concentrations. The clove flower extract concentrations used were 5%, 10%, and 15%. After the hand sanitizer gel preparation was formed, the clove flower extract was then tested for the stability of the gel preparation. The clove flower extract obtained was 116.4 grams of thick extract. The results of phytochemical screening of clove flower extract showed the presence of secondary metabolites, namely flavonoids, alkaloids, saponins and tannins. Based on the evaluation of the hand sanitizer gel preparation, clove extract showed that it was physically stable during storage. Based on the acceptability or liking test conducted on 20 respondents using a questionnaire sheet, the results showed that the respondents really liked the aroma of formula F3.
Skin disease was a disease that attacked the surface of the body, and was caused by various agents, one was bacteria. One of the plants that had antibacterial activity was jengkol leaf (Archidendron pauciflorum Benth.) I.C. Nielsen because it contained compounds that had antibacterial properties that had previously been studied by other researchers against Staphylococcus aureus and Escherichia coli bacteria. So that researcher was interested in researching on the antibacterial activity of jengkol leaves (Archidendron pauciflorum Benth.) I.C. Nielsen against Staphylococcus epidermidis and Propionibacterium acnes. Fresh Jengkol leaves were processed into simplicia and extracted using 96% ethanol. Phytochemical screening was carried out on simplicia powder and extracts of jengkol leaves. Ethanol extract jengkol leaves was made in several concentrations, namely 20%, 25%, and 30%, positive control using Tetracycline HCl, and negative control using 1% DMSO. There were several tests carried out on jengkol leaves in addition to phytochemical screening, namely examination of simplicia characteristic including macroscopic examination, microscopic examination, examination of water content, examination of water-soluble extract levels, examination of ethanol-soluble extracts, examination of total ash content, and also an examination of acid-insoluble ash levels and antibacterial activity test of jengkol leaves. The results of phytochemical screening showed that the compound of jengkol leaves (Archidendron pauciflorum Benth.) I.C. Nielsen contained a class of secondary metabolites of alkaloids, flavonoids, tannins, saponins, steroids/triterpenoids, and glycosides. And for the results of the antibacterial activity research also showed that jengkol leaves could be used as antibacterial because it has a strong inhibitory power at a concentration of 20% and the strongest at a concentration of 30% against Staphylococcus epidermidis, namely 15.06 mm and 17.83 mm, while in diameter of growth inhibition zone Propionibacterium acnes was 15.86 mm and 18.1 mm.
The avocado (Persea americana Mill.) is a fruit that is often found. This versatile fruit has many benefits for humans. The benefits of avocado are as anti-hyperlipidemic, analgesic, anti-inflammatory, anticonvulsant, hypoglycemic, hypercholesterolemic, wound healing and prevent cancer. The aims of this study was to make avocado seed methanol extract into a gel preparation and to determine the effect of avocado seed methanol extract gel and at what concentration the effective treatment for wounds in mice and its comparison with Star Ag gel as a positive control. The research was conducted using an experimental method. The manufacture of avocado seed methanol exstract was carried out by maceration method using methanol as a solvent. The result of the study were statistically analyzed using One Way Anova. The result of the data analysis at a concentration of 5% obtained a sig value <0,05. Based on One Way Anova analysis of the five treatments, the most effective was avocado seed methanol extract gel with a concentration of 5%.
Gaharu (Aquilaria malaccensis Lam.) is one of the natural ingredients that can be used as an antioxidant. Antioxidants are compounds that can inhibit free radical reactions in the body. Free radicals have an impact on the pathogenesis of several diseases in humans due to oxidative stress in cells. The purpose of this study was to determine the class of secondary metabolites of agarwood bark and antioxidant activity and to compare the value of IC50 (Inhibitory concentrations) of the methanol extract of agarwood bark with the IC50 of vitamin C in the DPPH method using UV-Vis spectrophotometry. The methanol extract of agarwood bark was macerated using methanol, then determined the content of secondary metabolites of Simplicia. The determination of antioxidant activity was carried out on the methanol extract of agarwood bark with the addition of DPPH at various concentrations. The sample concentrations were 20, 40, 60, 80, and 100 µg/mL.. As a comparison, vitamin C was used with concentrations of 4, 8, 12, 16 and 20 µg/mL.. Then they calculated percent attenuation (% inhibition) and the value of IC50. The results of the screening on the methanol extract of agarwood bark contained chemical compounds such as flavonoids, saponins, and tannins. The determination of antioxidant activity was carried out using a UV-Vis spectrophotometer with the DDPH method. The results were obtained from the methanol extract of the bark of agarwood, which has antioxidant activity in the strong category with an IC50 value of 94.59 µg/mL.and vitamin C in the very strong category with an IC50 value of 22,11 µg/mL.
Shellfish is one of Indonesia's fishery commodities which is increasing every year, one of which is blood clams and feather shells, which are easily found in Southeast Asia and East Asia. Shellfish also have great potential so that it has an impact on the increasing waste that is allowed to accumulate without any handling of the pollution that exists in the environment and society. One alternative to the use of waste from feather shells to have a high use value is to isolate it into chitosan. The purpose of this study was to investigate the utilization of shellfish waste into chitosan and to determine the LC50 value of the chitosan produced. The analysis carried out was the toxicity test of chitosan from shellfish shell waste on Artemia salina Leach shrimp larvae using the Brine Shrimp Lethalitiy Test (BSLT) method with various concentrations of 100; 250; 500; 750; and 1000 µg/mL, and determining the value of LC50 by probit analysis. Based on the results of the toxicity test of chitosan from shellfish waste, the LC50 value was µg/mL. These results indicate that chitosan from shellfish waste has no toxic effect on Artemia salina Leach shrimp larvae.
Miana leaf (Coleus scutellarioides L.) is a plant that contains anthocyanins that can provide certain dyes. The purpose of this study was to formulate miana leaf extract in lip cream preparations as a natural dye. The research method includes the manufacture of ethanol extract of miana leaves (Coleus scutellarioides L.) by maceration method. The extract formulas used were 25%, 50%, and 75%. The tests carried out included organoleptic tests, homogeneity tests, physical tests, pH tests, irritation tests and color preference tests. The results of the lip cream preparation, the results of the organoleptic examination were declared to have a semi-solid dosage form, distinctive odor and varied colors F1 pink F2 purplish red, F3 blackish red, homogeneity test results were declared homogeneous, stability test results showed that the preparation did not change shape, color and the odor of the preparation for 14 days of storage, the results of the pH test showed that the preparation was still within the permissible pH range on the use of the skin, the test results were declared non-irritating. Miana leaf ethanol extract can be made as a colorant in lip cream preparations.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.