A water-soluble galactomannan from the seeds of Indigofera tinctoria linn.

Sen, A. K.; Banerjee, N.; Farooqi, M. I. H.

doi:10.1016/0008-6215(86)85073-x

Cited by 8 publications

(2 citation statements)

References 8 publications

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“…Acid hydrolysis using sulfuric acid and hydrochloric acid has been used to hydrolyze hemicelluloses and cellulose of the date seeds (Hasan Ba Hamid & Ku Ismail, 2020). Also, acid hydrolysis has been employed to degrade purified galactomannan to D‐mannose and D‐galactose (Sen et al, 1986). Likewise, the use of enzyme agents as a degradation and extraction technique (i.e., enzymatic hydrolysis) has attracted significant interest, as high‐purity extraction of the targeted bio‐compound can be achieved (Gowdhaman & Ponnusami, 2015).…”

Section: Hydrolysis Of Date Seedsmentioning

confidence: 99%

Extraction of phytochemicals from date palm ( Phoenix dactylifera L.) seeds by enzymatic hydrolysis

Gul

Ahmad

2022

Food Processing Preservation

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The date palm (Phoenix dactylifera L.) industry generates around 1 million tons of date seeds annually. These seeds contain dietary fibers, fatty acids, proteins, and other phytochemical compounds that, if extracted, could be utilized in food, medicine, cosmetics, and energy production. Extracting bioactive compounds from date seeds requires cell degradation to release the intracellular content. Enzymatic hydrolysis (EH) is a biochemical process used to release bioactive molecules stored in date seeds and subsequently produce valuable products. The aim of this review was to highlight the role of EH in the extraction of useful bioactive compounds from the date seeds. Specifically, extraction of the dietary fibers (sugars), proteins, and fatty acids (oils) from the date seeds and their subsequent conversion to bio‐fuel (i.e., ethanol and diesel) are discussed in detail. This review may provide a useful reference for the users of date products. Novelty impact statement The seeds of the date palm (Phoenix dactylifera L.) contain dietary fiber, fatty acids, proteins, and other phytochemicals that, if extracted, could be used in food, medicine, cosmetics, and energy. The use of enzymatic hydrolysis to extract these bioactive compounds from the date seeds and the associated parameters and their optimization are discussed in this study.

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Section: Hydrolysis Of Date Seedsmentioning

confidence: 99%

Extraction of phytochemicals from date palm ( Phoenix dactylifera L.) seeds by enzymatic hydrolysis

Gul

Ahmad

2022

Food Processing Preservation

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“…and (B) butan-1-ol/pyridine/water (6:4:3, by vol.). The sugars were detected with alkaline silver nitrate reagent (Sen et al, 1986). For neutral-sugar analysis, 4 mg of sample was hydrolysed with 2 M-trifluoroacetic acid for 2 h at 120 "C in a sealed tube (Albersheim et al, 1967).…”

Section: Carbohydrate Analysismentioning

confidence: 99%

Studies on chemical modification of cold agglutinin from the snail Achatina fulica

Sarkar

Mitra

Sen

1987

Biochemical Journal

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The cold agglutinin isolated from the albumin gland of the snail Achatina fulica was modified with various chemical reagents in order to detect the amino acids and/or carbohydrate residues present in its carbohydrate-binding sites. Treatment with reagents considered specific for modification of lysine, arginine and tryptophan residues of the cold agglutinin did not affect the carbohydrate-binding activity of the agglutinin. Modification of tyrosine residues showed some change. However, modification with carbodiimide followed by alpha-aminobutyric acid methyl ester causes almost complete loss of its binding activity, indicating the involvement of aspartic acid and glutamic acid in its carbohydrate-binding activity. The carbohydrate residues of the cold agglutinin were removed by beta-elimination reaction, indicating that the sugars are O-glycosidically linked to protein part of the molecule. Removal of galactose residues from the cold agglutinin by the action of beta-galactosidase indicated that the galactose molecules are beta-linked. These carbohydrate-modified glycoproteins showed a marked change in agglutination property, i.e. they agglutinated rabbit erythrocytes at both 10 degrees C and 25 degrees C, indicating that the galactose residues of the glycoprotein play an important role in the cold-agglutination property of the glycoprotein. The c.d. data showed the presence of an almost identical type of random-coil conformation in the native cold agglutinin at 10 degrees C and in the carbohydrate-modified glycoprotein at 10 degrees C and 25 degrees C. This particular random-coil conformation is essential for carbohydrate-binding property of the agglutinin.

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Seed Galactomannans: An Overview

Srivastava

Kapoor

2005

Chemistry & Biodiversity

280

152

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Seed galactomannans are vegetable, heterogeneous polysaccharides widely distributed in nature. Generally, they possess (1-->4)-linked D-mannopyranose (Man) main chains to which are attached (1-->6)-linked D-galactopyranosyl (Gal) units. The Man/Gal ratios differ from gum to gum, resulting in a change in structure, which, in turn, determines the various industrial applications of seed galactomannans. These materials are important in paper, textile, petroleum-drilling, pharmaceutics, food, cosmaceutics, and explosives industries. In this review, the biodiversified applicability of galactomannan gums is discussed, particularly with respect to structural aspects, properties, human consumption, and technical applications. Especially important is that the solution properties (rheological behaviour, viscosity, emulsifying tendency, etc.) of natural and chemically modified galactomannans can be tuned by interaction with other (carbohydrate-based) monomers or polymers.

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A water-soluble galactomannan from the seeds of Indigofera tinctoria linn.

Cited by 8 publications

References 8 publications

Extraction of phytochemicals from date palm ( Phoenix dactylifera L.) seeds by enzymatic hydrolysis

Extraction of phytochemicals from date palm ( Phoenix dactylifera L.) seeds by enzymatic hydrolysis

Studies on chemical modification of cold agglutinin from the snail Achatina fulica

Seed Galactomannans: An Overview

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