scholarly journals Comparative Extraction Performance of Solvent Systems in the Extraction and Characterization of Pectin from Prosopis Africana Seed Gum

2020 ◽  
Vol 3 (3a) ◽  
pp. 93-98
Author(s):  
PA Adie ◽  
CO Ikese ◽  
EA Otache
Keyword(s):  
Functional Food ◽  
Solvent System ◽  
Ash Content ◽  
Equivalent Weight ◽  
Food Ingredient ◽  
Prosopis Africana ◽  
Solvent Systems ◽  
Extraction Performance ◽  
Seed Gum

Pectin was separately extracted in warm water bath from sun-dried and crushed Prosopis africana seed gum, using 0.05 M solutions of HCl, H2SO4, CH3COOH, C6H8O7 and a 3:2 blend of (H2SO4: C6H8O7). The physicochemical properties of pectin extracted from the Prosopis africana seed gum shows the following: colour varied from beige-brown to wheat brown, equivalent weight (1,818.18 mg/mol to 25,000 mg/mol), methoxyl content (0.124 % to 1.705 %), moisture content (12 % to 38 %) and ash content (2 %) for all the solvent system used. Also, the comparative solvent performance shows that the H2SO4:C6H8O7 solvent blend was the most effective for pectin extraction followed by the solvent HCl and H2SO4, while C6H8O7 was the least effective. The comparative pectin yield of Prosopis africana seed gum using selected acid solvent ranged from 6.94 % to 15.28 %. Among the solvents under study, the H2SO4:C6H8O7 solvent blend gave the highest pectin yield (15.28 %) with beige-brown, low methoxyl pectin of high purity and could be used as a functional food ingredient domestically and industrially

scholarly journals Resistant Starch: A Promising Functional Food Ingredient

2021 ◽  
Author(s):  
Revati Wanikar ◽  
Swati Kotwal
Keyword(s):  
Resistant Starch ◽  
Functional Food ◽  
Starch Content ◽  
Good Health ◽  
Structural Features ◽  
Food Ingredient ◽  
Factors Affecting ◽  
Physiological Benefits ◽  
Specific Contribution

Nowadays dietary starches are considered as a tool for maintaining good health. Recently resistant starch has received much attention because of its specific contribution to human health. Resistant starch escapes digestion in the small intestine and fermented in the colon by colonic microorganisms. Resistant starch has wide applications in varieties of food products. In the present study, types of resistant starch, their sources, physiological benefits, have been discussed briefly. This chapter focuses on factors affecting starch digestion, resistant starch content, characterization of resistant starch and various techniques employed to study their structural features.

Benchmarking Study of Cymbopogon citratus and C. nardus for Its Development of Functional Food Ingredient for Anti-diabetic Treatment

2019 ◽  
Vol 2 (2) ◽  
pp. 109-114
Author(s):  
Diah Indriani Widiputri ◽  
Maria DPT Gunawan-Puteri ◽  
Irvan S. Kartawiria
Keyword(s):  
Literature Review ◽  
Functional Food ◽  
Water Extract ◽  
Cymbopogon Citratus ◽  
Food Ingredient ◽  
Food Ingredients ◽  
Functional Activities ◽  
Diabetic Treatment

Cymbopogon citratus and Cymbopogon nardus are two species of Cymbopogon that are commonly cultivated in Indonesia. Studies have shown Cymbopogon activities and potencies for development for various diseases including diabetic treatment. Both C. citratus and C. nardus have long history for culinary and medicinal herb in Indonesia and therefore have a sustainable commercial production that will support their development for functional food ingredient. This work provides a study about industrial observation in several herbal industries along with literature review of herbal industries condition in Indonesia as a benchmarking study to summarize the required research or technical development of Cymbopogon as functional food ingredients. During industrial observation it was shown that Cymbopogon usage in herbal industries were more popular as flavorings rather than for its functionalities. The industrialobservation to several reputable herbal industries showed that despite the similar infrastructure used for extraction and pulverization method, the industries might have different supply procurement and quality requirement, extraction principle, product character and quality control, and therefore market character. The literature review have shown several studies of Cymbopogon functionalities in organic solvents, empirical uses of Cymbopogon as medicinalherbs in water extract, optimization in Cymbopogon cultivation. Heavy studies have been done in the extraction, usage, and characterization of essential oils from Cymbopogon. Many literature showed formulation of Cymbogon for culinary purpose but there are yet formulation based on its functional activities. Both industrial observation and literature review called in the requirement of more study of activities and stabilities of the Cymbopogon aqueous andethanolic extracts, optimization of post-harvest processing, extraction, and further processing to produce Cymbopogon ingredients based on activities and efficiency, and the determination of active fraction/compound(s) responsible for the activity and formulation of food that will enable the usage direction of functional food ingredients.

Preparation and Characterization of Porous PLGA Scaffold for Tissue Engineering

2014 ◽  
Vol 898 ◽  
pp. 322-325
Author(s):  
Xue Jun Wang ◽  
Tao Lou ◽  
Zhen Yang ◽  
Kun Peng He
Keyword(s):  
Tissue Engineering ◽  
Mixed Solvent ◽  
Solvent System ◽  
High Porosity ◽  
Thermally Induced Phase Separation ◽  
Plga Scaffold ◽  
Thermally Induced ◽  
Fibrous Matrix ◽  
Solvent Systems

Scaffold plays an important role in tissue engineering. In this study, porous PLGA scaffold was successfully prepared by mixed solvent systems using the thermally induced phase separation method. The PLGA scaffold shows fibrous matrix and interconnective pores, and the scaffold has high porosity and compressive modulus with dioxane/THF solvent system, which could be a very promising scaffold for tissue engineering.

scholarly journals Ekstraksi Dan Karakterisasi Pektin Kulit Jeruk Manis Kisar (Citrus sp.)

2019 ◽  
Vol 7 (1) ◽  
pp. 61-68
Author(s):  
Jolantje Latupeirissa ◽  
Eirene G. Fransina ◽  
Matheis F.J.D.P. Tanasale
Keyword(s):  
Moisture Content ◽  
Functional Group ◽  
Ash Content ◽  
Equivalent Weight ◽  
Degree Of Esterification

Extraction and characterization of pectin from the oranges peel of kisar (Citrus sp.) have been done. Pectin was obtained from extraction oranges peel crust of kisar with HCl at temperature 90 °C during 4 hours. The content of albido and pectin are 69.17% and 82.82%, respectively. Identification functional group of pectin was using by FTIR spectrophotometer which OH-alcohol (3294.42–3373.50 cm-1), CH3-alifatic (2939.52 cm-1), C=O ester (1741.72–1730.15 cm-1), C=C alkene (1614.42–1643.35 cm-1), and C-O eter (1232.51–1276.88 cm-1).  Characterizations of pectin were equivalent weight (2011.6 mg), methoxyl content (1.17%), galacturonic level (41.64%), moisture content (28.46%), ash content (11.92%), and degree of esterification (15.95%).

Fractionation and characterization of lignin-carbohydrate complexes (LCCs) from eucalyptus fibers

Holzforschung ◽  
2011 ◽  
Vol 65 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Jiebing Li ◽  
Raquel Martin-Sampedro ◽  
Cristiane Pedrazzi ◽  
Göran Gellerstedt
Keyword(s):  
Milling Time ◽  
Molecular Size ◽  
Solvent System ◽  
Tetrabutylammonium Hydroxide ◽  
Flax Fibers ◽  
Tetrabutylammonium Fluoride ◽  
Solvent Systems ◽  
Time Required ◽  
Molecular Size Distribution

Abstract The effect of milling time on the structure of lignin was investigated by analyzing the quantity and molecular size distribution of thioacidolysis products obtained from wood and pulp of eucalypt (Eucalyptus globulus). After milling, the ability of three solvent systems was determined to completely dissolve the wood or pulp meal. It was found that a mixture of DMSO and 50% aqueous tetrabutylammonium hydroxide was superior to either dimethylacetamide-LiCl or DMSO-tetrabutylammonium fluoride as solvent. By applying the minimum milling time required for complete dissolution, structurally unaltered wood or pulp could be further separated into lignin-carbohydrate fractions. These were analyzed by thioacidolysis. From eucalypt pulp, two different lignin-carbohydrate fractions were obtained, one glucan- and one xylan-enriched fraction, with the latter having more syringyl units in its lignin moieties. The developed solvent system seems to be universal because spruce and flax fibers and pulps could also be dissolved in it after milling.

scholarly journals Ekstraksi Dan Karakterisasi Pektin Kulit Jeruk Manis Kisar (Citrus sp.)

2019 ◽  
Vol 7 (1) ◽  
pp. 61-68
Author(s):  
Jolantje Latupeirissa ◽  
Eirene G. Fransina ◽  
Matheis F.J.D.P. Tanasale
Keyword(s):  
Moisture Content ◽  
Functional Group ◽  
Ash Content ◽  
Equivalent Weight ◽  
Degree Of Esterification

Extraction and characterization of pectin from the oranges peel of kisar (Citrus sp.) have been done. Pectin was obtained from extraction oranges peel crust of kisar with HCl at temperature 90 °C during 4 hours. The content of albido and pectin are 69.17% and 82.82%, respectively. Identification functional group of pectin was using by FTIR spectrophotometer which OH-alcohol (3294.42–3373.50 cm-1), CH3-alifatic (2939.52 cm-1), C=O ester (1741.72–1730.15 cm-1), C=C alkene (1614.42–1643.35 cm-1), and C-O eter (1232.51–1276.88 cm-1).  Characterizations of pectin were equivalent weight (2011.6 mg), methoxyl content (1.17%), galacturonic level (41.64%), moisture content (28.46%), ash content (11.92%), and degree of esterification (15.95%).

OPTIMIZATION OF THIN LAYER CHROMATOGRAPHY METHODS FOR SEPARATION AND IDENTIFICATION OF ANTIDEPRESSANTS IN THEIR MIXTURE

2014 ◽  
Vol 21 (1) ◽  
pp. 11-15
Author(s):  
Daiva Kazlauskienė ◽  
Guoda Kiliuvienė ◽  
Palma Nenortienė ◽  
Giedrė Kasparavičienė ◽  
Ieva Matukaitytė
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Solvent System ◽  
Ammonia Solution ◽  
Relative Standard ◽  
Rf Values ◽  
Solvent Systems ◽  
Paroxetine Hydrochloride ◽  
Fluvoxamine Maleate ◽  
Layer Chromatography

By conducting the toxicological analysis it is meaningful to determine the analytical system that could identify simultaneously several medicinal preparations quickly and precisely. The purpose of this work was to create and validate the method of thin-layer chromatography that would be suitable to separate the components of antidepressant mixture (amitriptyline hydrochloride, paroxetine hydrochloride, sertraline hydrochloride, fluvoxamine maleate and buspirone hydrochloride) and to identify them. The system was validated with regard to the sensitivity, repetition of data, resistance and particularity. The solvent systems with potential of high separation of components in their mixture were created: acetonitrile, methanol, ammonia solution 25 percent (85:10:5); acetonitrile, methanol, ammonia solution 25 percent (75:20:5); dichlormethane, 1,4-dioxane, ammonia solution 25 percent (50:45:5); dichlormethane, 1,4-dioxane, ammonia solution 25 percent (42:55:3); trichlormethane, 1,4-dioxane, ammonia solution 25 percent (25:70:5); trichlormethane, 1,4-dioxane, ammonia solution 25 percent (60:36:4). One of the most suitable solvent systems for separation of the analyzed mixture (sertraline, amitriptyline, paroxetine, buspirone, fluvoxamine) was determined – acetonitrile, methanol, ammonia solution 25 percent (85:10:5). When this solvent system was used, the average Rf values of the analyzed compounds differed the most. Validation was conducted – the relative standard deviation (RSD, percent) of the average Rf value of the analyzed compounds varied from 0,6 to 1,8 percent and did not exceed the permissible error of 5 percent. The sensitivity of methodology was determined by assessing the intensity of the mixture’s spots on the chromatographic plate. The detection limit of buspirone was 0,0012 µg; sertraline – 0,0008 µg; amitriptyline – 0,0004 µg; fluvoxamine – 0,0004 µg; paroxetine – 0,0008 µg. The resistance of results to the changed conditions – it was determined that when the amounts of the solvents acetonitrile and methanol were increased or decreased to two milliliters, the average Rf values of the analyzed compounds did not change statistically significantly

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