Bioinformatic insights on biochemical efficacy of a fungal metabolite: Asperyellone

The present study emphasizes the biochemical and bioinformatics insights of a fungal secondary metabolite identified as Asperyellone in detail. In brief, yellow color pigment, Asperyellone (AY) obtained from Aspergillus species...

Bioprospecting Studies of Halophilic Bacteria – Streptomyces sp MA05 and Halobacterium sp MA06

In this study, two halophiles (Halobacterium sp MA06 and Streptomyces sp MA05) isolated from the salt lake of Chennai were exploited. Optimization of growth condition for both the organisms was done and then subjected for bioprospecting analysis for the enzyme (amylase) and pigment production. One of the isolates, i.e., Streptomyces sp MA05, was found to produce amylase. Thus that organism was subjected to amylase production, and the produced amylase was characterized. The other isolate (Halobacterium sp MA06) was found to produce orange color pigment, and the pigment was characterized by GC-MS analysis and subjected to optimization of pigment production. The extract of Streptomyces sp MA05 and pigment of Halobacterium sp MA06 were subjected to antimicrobial and anticancer activity. Only the metabolite of Streptomyces sp MA05 had antibacterial activity.

Butterfly Pea (Clitoria Ternatea L.) Extract as Indicator of Acid-Base Titration

An anthocyanin color pigment result from butterfly pea flower maceration has been done. This study aims to determine the effect of time variation in the maceration of anthocyanin butterfly pea flower extract and the stability of butterfly pea flower extract as an indicator of acid-base titration. Color pigment levels were determined quantitatively with a UV-Visible spectrophotometer. The anthocyanin levels obtained during the duration of maceration 5 days in a row resulted from 4.3915%, 5.9869%, 7.3970%, 8.8995%, and 10.2864%. While the anthocyanin levels using a differential pH method were 14.2775 mg/L and 14.9455 mg/L with % RPD value was 4.57%. The results of the study stated that the indicators of the butterfly pea flower crown extract can be a substitute for the synthetic phenolphthalein indicator that has been used.

Utilization of Extract of Sambang Getih Leaves (Hemigraphis colorata. Hall. F) as a Acid-Base Indicator

Getih sambang leaves (Hemigraphis Colorata. Hall. F) are plants that have a distinctive and unique color, namely the upper surface of the leaf is green and the bottom of the leaf is burgundy where sambang leaves contain anthocyanin compounds. Anthocyanin is the color pigment in plants that forms the basis of the use of natural indicators. This study aims to prove whether getih cucumber leaves can be used as an acid-base indicator, to determine the type of acid-base titration that is suitable for indicators of getih cucumber leaves, and to find out what the pH-changing color route of getih cucumber leaves is. The method used is extraction, namely maceration. Wee leaves are macerated by using methanol as a solvent for 24 hours. The extract was previously tested using HCl solution and NaOH solution as a test to prove the presence of anthocyanin. The results obtained in this study, getih sambang leaf extract can be used as an indicator of acid base, and also the type of acid-base titration that is suitable for use in the indicator of getih leaf extract extract precisely on the titration of strong-base strong acid, and strong weak base-acid It is best used as a substitute for the phenolphthalein indicator. In titration of strong and weak acids and bases, it is good to be used as a substitute for the indicator of methyl orange. The pH range obtained from the getih sambang leaf extract is pH 4-7 (red-purple).

Formulasi Pembuatan Sediaan Eyeshadow dari Ekstrak Bunga Kecombrang (Etlingera elatior Jack)

One type of cosmetic or decorative cosmetic preparation is eyeshadow which contains a color pigment applied to the eyelid. The purpose of this study was to find out that kecombrang flower extract can be used as eyelid coloring. From the study to make eyeshadow preparations using dyes extracted from kecombrang flowers, to determine the stability of the eyeshadow by using kecombrang flower extract in storage at room temperature, and to find out whether eyeshadow preparations using extracts from kecombrang flowers cause irritation when used. Eyeshadow preparations from kecombrang flower extract (Etlingera elatior Jack) were made in various concentrations of 15%, 17.5%, 20%, 22.5%, 25% and blank preparations (without using kecombrang flower extract). Physical quality inspection of the preparation includes: color dispersion test (homogeneity), cracking test, and stock stability test. And for other tests carried out polishing tests (homogeneity) and irritation tests. Eyeshadow from kecombrang flower extract also does not cause irritation and is stable in room temperature storage for 30 days. Preparation of kecombrang flower extract with several good concentrations was used as eyeshadow preparations, stable eyeshadow preparations in storage at room temperature within 30 days, and the formulation of eyeshadow preparations using kecombrang flower extract as eyelid coloring did not cause irritation.

Short Communication: Dye-yielding plant resources of Maharashtra, India: A checklist

Patil SH, Kurlapkar DD, Gaikwad DK. 2019. Dye-yielding plant resources of Maharashtra, India: A checklist. Biodiversitas 20: 250-266. Natural dyes have rich variation in sources of dyestuff and possess superior aesthetic quality, which is more pleasing to the eye due to unique natural color. Because of their nontoxic effect, they are used for coloring textile, cosmetics, drugs, and various food products. Although indigenous knowledge system has been practiced over the years in the past, the use of natural dyes has diminished over generations due to lack of documentation. Also, there is not much information available on databases of either dye-yielding plants or their products. Therefore, the purpose of the present study was to document the dye yielding plant species and associated knowledge from the study area. Present study provides the first comprehensive checklist of dye yielding Angiosperms of Maharashtra and their resulting color, pigment, and distribution have also been reported. A checklist consists of 195 species distributed among 153 genera and 58 families are presented based on published literature on dye plants, various state and regional floras.

Utilization Of Carbon Waste Leaf As A Organic Pigment In Whiteboard Spidol Ink

Waste has become one of the problems that until now has not been resolved in the community. One type of waste that is abundant is organic waste in the form of leaves. Based on this fact which demands a creative and innovative way of processing waste into a powerful product. One effort made is the utilization of leaf waste as organic color pigment on white board marker ink. Pigment is obtained by reducing leaf waste to homogeneous form of carbon powder that is burning leaf garbage in low oxygen condition then done simple mixing process with other material of ink maker. The resulting ink is tested for transmittance in carbon mass variations in the range from 1 to 6 grams, the results show that the more carbon mass, the lower the intensity of the light passes. The absorption rate test shows that the carbon inks have a speed similar to the ink type on the market, which is 0.081 mm / s. When the performance test of the carbon ink on the white board shows almost the same result of black with commercial ink and can adhere well so it is suitable if applied as white board marker ink.

Stability of Eleutherine americana (L.) Merr. Extract as Lipstick Colorants as the Change of Temperature, Time, Storage Condition and the Presence of Oxidator

Bawang Tiwai (Eleutherine americana (L.) Merr bulbus. is a typical plant from Kutai tribes which commonly used as an anti-bacterial and food coloring. The stability test is performed to determine the stability of the extract. Stability test was conducted in two solvents are distilled water and ethanol include the effects of temperature (25°C, 50°C, 80°C), pH (3, 5, 7), an oxidant for 6 hours, conditions of storage at room temperature and the temperature of the refrigerator for 24 hours and storage for 2 weeks. The absorbance of extract in ethanol and aquadest was decreasing due to the change of temperature, time, the presence of oxidator but due to pH changes, the absorbance of extract was increasing. Meanwhile, on the storage condition, showed the highest absorbance on dark, and room temperature storage compared to other condition.Key words: Eleutherine americana (L.) Merr bulbus, stability, color pigment

Comparison of Anthocyanin and Polyphenolics in Purple Sweetpotato (Ipomoea batatas L.) Grown in Different Locations in Japan

The health benefits of purple sweetpotato, which is used as an edible food in its natural state and in processed foods and as a natural color pigment, have been recognized. In Japan, sweetpotato has been economically produced in regions below 36°4′N latitude, however, cultivation areas are beginning to expand further north. The anthocyanin and polyphenolics in purple sweetpotatoes cultivated in different locations; I (42°92′ N, 143°04′ E), II (35°99′ N, 140°01′ E), and III (31°72′ N, 131°03′ E), were compared over two years. Total anthocyanin and polyphenolic contents in purple sweetpotatoes tended to be high in location I. Their contents significantly differed over the two years in locations I and III and was dependent on temperature during cultivation. The anthocyanin and polyphenolic compositions differed between locations. The peonidin/cyanidin ratios were higher in location III compared with I and II in all varieties. The relative amount of chlorogenic acid was higher in location I, while the amount of 3,4- and 4,5-dicaffeoyolquinic acids were higher in location III, suggesting that the variability of the anthocyanin and polyphenolic content and composition was dependent on cultivation conditions. This study suggested that northern areas in Japan are an alternative production area and may yield higher amounts of anthocyanin and polyphenolics.