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Sponge-associated marine fungi are potential source for secondary metabolite compounds. The aim of this research was to investigate sponge-associated marine fungus as secondary metabolite producers against Escherichia coli. The fungus was isolated from Indonesian marine sponge Stylissa sp. and identified as Aspergillus hortai through a combination of morphological and molecular characteristics of ITS DNA and β-tubulin genes. The fungus was tested against E. coli using fungal broth and mycelial extracts. The optimized condition was achieved by fungal broth grown in corn meal broth at 6-days of shaking incubation. Fungal extract was produced using three liters of filtered fungal broth and extracted in ethyl acetate. The antibiotic activity of the extract is vulnerable to 45°C heat and basic or acidic conditions. Therefore, the extraction was done at pH 7 with evaporation at 40°C. The extract shows 7 major bands on TLC with 1 band shows activity against E. coli (Rf 0.81) on bioautogram. The band was observed as a yellow color and turned black in short-wave UV and did not show any fluorescence in long-wave UV. This research shows that sponge- associated marine fungi obtained from Indonesia has the potential as anti E. coli worth to be explored for searching new antibiotics. [ABSTRACT FROM AUTHOR]

Pluchea indica (L.) Less is traditionally utilized to treat postpartum women in Indonesia. The plant has many pharmacological properties, so that it can be further developed as herbal medicine. In that development process, plant authentication is needed to ensure the quality of raw materials. A simple microscopical and thin-layer chromatography (TLC) analysis might be a way to authenticate the plant, but it has never been reported. So, this study evaluates the microscopical and TLC analysis for P. indica authentication in standardized herbal medicines production. Plant microscopic observation, fluorescence analysis, and polyphenol screening were conducted. n-Hexane, ethyl acetate, and methanol extracts of plant organs were then analyzed by TLC. Here, we reported that in microscopical analysis the simplicia of P. indica contains trichomes and tannin-containing cells. In addition, chlorogenic acid as a marker was present in TLC analysis by ethyl acetate-water-formic acid-acetic acid (8.5:1.5:1:1, v/v). The results of this evaluation might provide additional information in the identification, authentication, and quality control of P. indica as a raw material for herbal medicine. [ABSTRACT FROM AUTHOR]

Background: Many traditional medicinal plants were studied for their phytochemical components. Dayak onions (Eleutherine bulbous (Mill.) Urb) is one of traditional medicinal plant in Indonesia. Analysis of the phytochemical compounds in the extract of the plant would help in determining various biological activities of the plant. Objective: This study was primarily aimed to identify the phytochemical profile of Dayak onions extract and its fractions. Methods: The Dayak onion bulbs were collected from Pancur Batu District, North Sumatra Province, Indonesia. Multiple solvents used to for extraction and analysis of phytochemical compound by chemical reactions, thin layer chromatography (TLC) profiling, and Fourier Transform Infrared Spectrophotometer (FTIR) profiling. Results: The phytochemical screening of Dayak onions ethanol extract showed it contained alkaloids, flavonoids, glycosides, tannins, and triterpenes/steroids. The n-hexane fraction contained flavonoids and triterpenes/steroids, while the ethyl acetate fraction contains flavonoids and glycosides. The water fraction contained alkaloids, flavonoids, glycosides and tannins. By TLC profiling, the bioactive compounds in ethanol extract of the Dayak onion contain steroids, tannins, flavonoids and alkaloids. The bioactive compound in ethyl acetate fraction contains steroids, tannins, triterpenes, flavonoids and glycosides. The bioactive compound in n-hexan fraction contains steroids. The bioactive compound in water fraction fraction contains steroids and tannins. The FTIR demonstrated the presence of C-H alkanes, =C-H alkenes (aliphatic), C-O alcohol, ether, esters and carboxy acid in the ethanol extract, en-hexan fractions and ethyl acetate fractions. Conclusion: The phytochemical qualitative profiling showed that Dayak onion bulb as a rich source of bioactive compounds and have medicinal potential as therapeutic agent. A higher content of bioactive compounds of Dayak onion bulbs found in the ethanol and ethyl acetate extracts. The FTIR demonstrated the presence of C-H alkanes, =C-H alkenes (aliphatic), C-O alcohol, ether, esters and carboxy acid in the ethanol extract, enhexan fractions and ethyl acetate fractions. [ABSTRACT FROM AUTHOR]

Indonesia is the world's largest archipelagic state, with rich maritime biodiversity that includes microalgae. Microalgae contain various therapeutic components (i.e., anti-inflammatory) that have shown great potential to be used for human health and medicine. Navicula salinicola is a new species of microalgae discovered in the Maluku Islands marine environment in Indonesia. There have been no publications yet related to the potential content of compounds from these microalgae for anti-inflammatory purposes. The aim of this paper was to evaluate the anti-inflammatory activity of extracts of the microalgae Navicula salinicola. The Navicula salinicola was cultivated in optimum conditions after 7 days. The extraction was performed using the hierarchical maceration method with n-hexane, chloroform, and 96 percent ethanol. The extract's anti-inflammatory properties were evaluated using the Human Red Blood Cell (HRBC) stability method, and Na-diclofenac was used as a control. The results showed the n-hexane, chloroform, and ethanol extracts were able to inhibit red blood cell hemolysis with IC50 values of 154.905 ± 0.056, 80.395 ± 0.372, and 106.915 ± 0.153 %, respectively (IC50 for Na-diclofenac was 54.128 ± 0.033%). Identification of active compounds by using Thin Layer Chromatography (TLC) for the chloroform extract, the highest hemolysis inhibitory activity, showed that its containing alkaloid, phenolic, flavonoid, steroid, and terpenoid. In conclusion, the chloroform extract of Navicula salinicola had potent anti-inflammatory activity. [ABSTRACT FROM AUTHOR]

Introduction: Orthosiphon stamineus has been widely used across Asian countries for the treatment of various diseases. The quality of herbal medicine determine its safety as well as efficacy; and geographical origin is important factor contributing on the quality of herb and its products. Materials and Methods: Thin Layer Chromatography (TLC) method combined with chemometric, Principal Component Analysis (PCA), has been employed to evaluate the quality of Orthosiphon stamineus leaves collected from eleven origins in Indonesia. Results: The results showed that mobile phase suitable for Orthosiphon stamineus was chloroform, dichloromethane, ethyl acetate (7:4:1). The method used has met the requirements of TLC system stability and precision. TLC-fingerprints analyzed with chemometrics showed an ability to discriminate Orthosiphon stamineus from various origins. PCA score plot of the first two principal components (PC) clearly distinguished 3 clusters of samples, whereas the loading plot of the first two PC showed that compounds with the Rf values of 0.0-0.1, 0.1-0.2, 0.2-0.3, and 0.9-1.0 are the most important compounds for clustering of samples. Conclusions: TLCfingerprint combined with the PCA was able to discriminate among the leaves of Orthosiphon stamineus originated from various locations. TLC-fingerprints analyzed with chemometrics can be used as an alternative of marker-oriented method to evaluate the quality of Orthosiphon stamineus. [ABSTRACT FROM AUTHOR]

Aflatoxin B1 (AFB1) levels were evaluated in betel nuts (Areca catechu L.) being imported to Pakistan during 2010-2011. In total, 278 betel nut samples (India = 21, Indonesia = 51, Sri-Lanka = 34 and Thailand = 172) were received from the Department of Customs and were analysed by thin layer chromatography (TLC). All Indian origin betel nuts showed AFB1 contamination ranging from 11.7-262.0 µg kg(-1) with a mean of 92.5 µg kg(-1). Among Indonesian and Sri Lankan shipments, 80.4% and 73.5% betel nuts were contaminated with AFB1 ranging between 3.3-39.2 and 6.5-103.4 µg kg(-1) with a mean of 11.6 and 35.0 µg kg(-1), respectively. However, only 30.2% of Thailand origin samples showed AFB1 contamination ranging 3.3-77.0 µg kg(-1) with a mean of 6.6 µg kg(-1). The widespread occurrence of AFB1 increases the hazard associated with betel nuts. Thus, strict control is a pre-requisite for the production and import/export of psychoactive substances as betel nuts.