scholarly journals STABILITAS ANTOSIANIN DARI KULIT TERONG BELANDA MERAH (Solanum betaceum Cav.) TERHADAP PH DAN SUHU

2020 ◽  
Vol 5 (1) ◽  
pp. 64
Author(s):  
Sandra Tri Juli Fendri ◽  
Verawati Verawati ◽  
Putri Saimi Nuras
Keyword(s):  
Statistical Data ◽  
Ornamental Plants ◽  
Temperature Stability ◽  
Extraction Process ◽  
Stability Test ◽  
Anthocyanin Pigment ◽  
Liquid Extract ◽  
Sample Extract ◽  
Influence Of Ph ◽  
Solanum Betaceum

<p>There had been identification and stability test of anthocyanin liquid extract from skin of eggplant of Holland that red colored using UV-Vis spectrophotometer. Anthocyanin is a color compound that responsible mostly red, blue and purple in fruit, vegetables and ornamental plants and these anthocyanins belong to the flavonoid group. Eggplans of Holland is taken from Tabing market, Padang City. The extraction process was performed by maceration method using solvent of 96% ethanol: HCl 1% (9:1). The identification of the anthocyanin compound on the sample extract was done by color reaction with 2 M NaOH and 2 M HCl. Stability of the anthocyanin pigment was tested by both the pH and temperature difference treatments. The pH used was pH 1, 3, 5, 7 and 9, while the temperature used was 30<sup>o</sup>C, 40<sup>o</sup>C, 60<sup>o</sup>C, 80<sup>o</sup>C and 100<sup>o</sup>C. The parameters of stability are the color of solution, maximum wavelength (λmax) and absorbance. The anthocyanin pigments stability test Eggplant of Holland was performed by using one-way of statistical data of variances (ANOVA), the liquid leather extract was stated stable at the influence of pH to temperature (temperature 30, 40, 60 and 80<sup>o</sup>C), especially at pH 1-3 next pH 5 and pH 7.</p><p><strong><em>Keywords :</em></strong><strong><em> </em></strong><strong><em>Anthocyanin, identification, pH, temperature, stability test</em></strong></p>

scholarly journals EKSTRAKSI KUERSETIN DARI KULIT TERONG BELANDA (Solanum betaceum Cav.) MENGGUNAKAN PELARUT ETANOL DENGAN METODE MASERASI DAN SOKLETASI

2017 ◽  
Vol 6 (1) ◽  
pp. 36-42 ◽  
Author(s):  
Siswarni MZ ◽  
Yusrina Ika Putri ◽  
Rizka Rinda P
Keyword(s):  
Antioxidant Activity ◽  
Extraction Process ◽  
Extraction Time ◽  
High Yield ◽  
Aromatic Rings ◽  
Solvent Concentration ◽  
Independent Variables ◽  
Yield Value ◽  
Materials Used ◽  
Solanum Betaceum

The tamarillo peels (Solanum betaceum Cav.) contain flavonoid compounds, quercetin that can serve as antioxidant. This research aims to determine the best condition of operation in tamarillo peels extraction process to obtain the high yield value, and to prove the presence of antioxidant activity quantitatively. The materials used this research are tamarillo peels and ethanol. The independent variables in this research were the concentration of etanol which were 60%, 70%, 80% and 90% for maceration, and 70%, 80%, 90%, 99% for soxhletation. The extraction time are 3 days, 4 days, and 5 days for maceration and 3 hours, 4 hours, 5 hours for soxhletation. Extraction is done by maceration and soxhletation. The results of the qualitative analysis using FTIR represent the presence of functional groups such as keton, arylether, hydroxyl and aromatic rings which indicates quercetin compound’s presence. In quantitative analysis used Spectrofotometry UV-Vis, with the variation of 99% solvent concentration  and 5 hours of extraction time for soxhletation, the highest yield value obtained 0,0877 mg/g. The variation of 80% solvent concentration and 5 days of extraction time for maceration, the highest yield value obtained 0,0705 mg/g

Validation and Application of a Method for the Determination of Phthalate in Urine by LC-MS/MS: Short-term Temperature Stability Test

Epidemiology ◽  
2011 ◽  
Vol 22 ◽  
pp. S246
Author(s):  
Hosub Lim ◽  
Eunha Oh ◽  
Hyoyoung Kim ◽  
Yoonee Huh ◽  
Yoo Sung Hwang ◽  
...  
Keyword(s):  
Temperature Stability ◽  
Stability Test ◽  
Short Term

Validation and Application of a Method for the Determination of Bisphenol A in Urine By LC-MS/MS: Short-term Temperature Stability Test

Epidemiology ◽  
2011 ◽  
Vol 22 ◽  
pp. S245-S246
Author(s):  
Hosub Lim ◽  
Eunha Oh ◽  
Minho Yaung ◽  
Su Hee Kim ◽  
Yoo Sung Hwang ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Temperature Stability ◽  
Stability Test ◽  
Short Term

scholarly journals Optimization of the extraction and precipitation process of a leaf protein concentrate from Moringa oleifera Lam.

2022 ◽  
Vol 75 (1) ◽  
Author(s):  
Byron Patricio Pérez Simba ◽  
Javier Alberto Garrido Espinosa ◽  
Andrea Belén Endara Vargas ◽  
Andrea Carolina Landázuri Flores ◽  
Lucía de los Ángeles Ramírez Cárdenas
Keyword(s):  
Moringa Oleifera ◽  
Protein Extraction ◽  
Extraction Process ◽  
Raw Material ◽  
Leaf Protein ◽  
Precipitation Process ◽  
Randomized Design ◽  
Leaf Protein Concentrate ◽  
Influence Of Ph ◽  
Moringa Oleifera Lam

This study aimed to determine the best extraction and precipitation conditions of Moringa oleifera Lam. leaf protein. The influence of pH (10, 11, 12) and the concentration of NaCl (0, 0.25, 0.5) for the protein extraction process were studied through a Completely Randomized Design (CRD) with factorial arrange 32. The combination of pH 11 and 12 with 0 M NaCl had the best yield (P<0.05). The treatment of pH 11 without NaCl followed a precipitation stage for its purification, and the effect of different levels of pH (4, 4.5, 5) and temperature (40, 60, 80 °C) were evaluated using a CRD with factorial arrange 22 and 6 central points. The temperature did not affect the yield of the process in a significant way and the amount of precipitate was maximized at pH 4 and 4.5. From 100 g of the dry leaf, 7.26±0.19 g of protein was isolated with a recovery of 26.93±0.22 g 100 g-1 from the total protein. Due to their astringency and bitterness, consuming large amounts of Moringa oleifera Lam leaves is not a solution; therefore, obtaining a leaf proteinconcentrate could be useful for diverse applications in nutritional supplements, and as raw material for functional products development.

scholarly journals Development of technology for obtaining a liquid extract of medicinal sage ( Salvia officinalis L.)

2021 ◽  
Vol 40 ◽  
pp. 03004
Author(s):  
Anastasia Moldavanova ◽  
Anastasia Malyutina ◽  
Larissa Kozubova ◽  
Valentina Kazakova ◽  
Natalia Shestopalova
Keyword(s):  
Inflammatory Diseases ◽  
Raw Materials ◽  
Extraction Process ◽  
Salvia Officinalis ◽  
Raw Material ◽  
Optimal Time ◽  
Processing Plant ◽  
Plant Materials ◽  
Liquid Extract ◽  
Salvia Officinalis L

Inflammatory diseases of the female genital area are dominant among the total number of gynecological diseases. Among all the variety of medicinal plant materials used in official medicine, salvia medicinal draws attention to itself, which has repeatedly proved its effectiveness in the treatment of inflammatory diseases of the mucous membranes of various origins. That is why the goal was set to develop a technology for obtaining a liquid extract from the leaves of Salvia officinalis L. As a result of the study, a method was developed for obtaining a liquid extract by selecting the optimal extraction conditions. It was found that the optimal raw material-extractant ratio is 1:50, the optimal concentration of the extractant ethyl alcohol is 70%, the infusion time of the extract is 24 hours. To intensify the extraction process, the method of ultrasonic processing of raw materials at the soaking stage was used. The optimal time for processing plant materials with ultrasound was 45 minutes. As a result of using this method to obtain a liquid extract from the leaves of sage officinalis, the yield of phenolic compounds was doubled in comparison with obtaining an extract without sonication of raw materials and amounted to 182.7 mg / g of flavonoids in terms of luteolin-7-glycoside.

scholarly journals Technological methods of herbs Salsola collina Pall. efficient processing

2011 ◽  
Vol 10 (5) ◽  
pp. 155-161
Author(s):  
A. N. Melentiyeva ◽  
V. S. Chuchalin ◽  
V. N. Burkova
Keyword(s):  
Plant Material ◽  
Extraction Process ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Liquid Extract ◽  
Efficient Processing ◽  
High Degree ◽  
Technological Methods ◽  
Active Substances

Research is devoted to the problem of efficient use of the herbs of Salsola collina Pall. Studied and analyzed the known technological methods of processing and to obtain standardized extractive complexes. Had developed an effective method of obtaining the liquid extract. The parameters of the extraction process and the proposed complex extractant, allowing a high degree of depletion of plant material for the various groups of biologically active substances, and get the finished product with desired properties.

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