Galactomannan: A versatile biodegradable seed polysaccharide

Prajapati, Vipul D.; Jani, Girish K.; Moradiya, Naresh G.; Randeria, Narayan P.; Nagar, Bhanu J.; Naikwadi, Nikhil N.; Variya, Bhavesh C.

doi:10.1016/j.ijbiomac.2013.05.017

Cited by 251 publications

(112 citation statements)

References 43 publications

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“…GM are high molecular weight polysaccharides found in the seed endosperms of some Leguminosae (belonging to the family Fabaceae), where they serve as a reserve source for carbon and energy upon germination (Prajapati et al, 2013).…”

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confidence: 99%

An aerogel obtained from chemo-enzymatically oxidized fenugreek galactomannans as a versatile delivery system

Rossi

Campia

Merlini

et al. 2016

Carbohydrate Polymers

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a b s t r a c tWe describe a new aerogel obtained from laccase-oxidized galactomannans of the leguminous plant fenugreek (Trigonella foenum-graecum) and suggest its potential practical use.Laccase/TEMPO oxidation of fenugreek in aqueous solution caused a viscosity increase of over 15-fold. A structured, elastic, stable hydrogel was generated, due to formation of carbonyl groups from primary OH of galactose side units and subsequent establishment of hemiacetalic bonds with available free hydroxyl groups.Upon lyophilization of this hydrogel, a water-insoluble aerogel was obtained (EOLFG), capable of uptaking aqueous or organic solvents over 20 times its own weight. The material was characterized by scanning electron microscopy, FT-IR, elemental analysis and 13 C CP-MAS NMR spectroscopy and its mechanical properties were investigated.To test the EOLFG as a delivery system, the anti-microbial enzyme lysozyme was used as model active principle. Lysozyme was added before or after formation of the aerogel, entrapped or absorbed in the gel, retained and released in active form, as proven by its hydrolytic glycosidase activity on lyophilized Micrococcus lysodeikticus cells wall peptidoglycans.This new biomaterial, composed of a chemo-enzymatically modified plant polysaccharide, might represent a versatile, biocompatible "delivery system" of active principles in food and non-food products.

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mentioning

confidence: 99%

An aerogel obtained from chemo-enzymatically oxidized fenugreek galactomannans as a versatile delivery system

Rossi

Campia

Merlini

et al. 2016

Carbohydrate Polymers

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“…Thus, their digestion is through bacterial fermentation. β-mannan (also known as β-galactomannan) is a soluble NSP containing repeated units of mannose complexed with galactose or glucose linked to the β-mannan backbone (Ouhida et al, 2002;Hsiao et al, 2006;Prajapati et al, 2013). The NSP can resist action by pig's endogenous enzymes.…”

Section: Introductionmentioning

confidence: 99%

Ileal digestibility of nutrients and amino acids in low quality soybean meal sources treated with β-mannanase for growing pigs

Upadhaya

Park

Lee

et al. 2016

Animal

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Apparent ileal digestibility (AID) of energy, dry matter (DM), nitrogen (N) and amino acids and standardized ileal digestibility (SID) of amino acids in low quality soybean meals with different CP concentration (SBM 44% CP and SBM 48% CP) with or without 400 U β-mannanase/kg supplementation were evaluated in 20 cannulated barrows ((Landrace × Yorkshire) × Duroc) with an average BW of 25.08 ± 3.42 kg. A N-free diet was used to determine basal endogenous losses of amino acids. The supplementation of β-mannanase improved ( P < 0.05) AID of DM compared with non-supplemented diet. However, enzyme supplementation did not improve ( P > 0.05) AID of N and energy. The type of SBM (SBM 44% CP v. SBM 48% CP) had no effect on AID of DM, N and energy. β-mannanase improved (P < 0.05) AID of sum of essential amino acids, arginine, histidine, lysine, valine and glycine. The SID of lysine was higher ( P < 0.05) in enzyme supplemented than in non-supplemented diets. Larger AID and SID of threonine and proline ( P < 0.05) were observed in SBM 48% CP than in SBM 44% CP. In conclusion, the supplementation of enzyme improved AID of arginine, histidine, lysine, valine and glycine, but it did not cause marked difference in SID of these amino acids except for lysine. The low nutrient digestibility of the SBM sources used in the present experiment might have favoured the positive effect of β-mannanase supplementation.Keywords: amino acid, ileal digestibility, mannanase, pig, soybean meal Implications Soybean meal (SBM) has been considered to be the most important plant-based protein source in livestock nutrition. However, the presence of anti-nutritional compounds such as trypsin inhibitor, lectins, non-starch polysaccharide in soybeans adversely affects their nutrient digestibility and absorption. In this study, feeding the diet supplemented with β-mannanase improved apparent ileal digestibility (AID) of dry matter, sum of essential amino acids, arginine, histidine, lysine, valine and glycine and the standardized ileal digestibility of lysine. Regarding SBM types, both SBMs had similar AID values for most of the nutrients except threonine and proline, which had higher AID values in SBM 48% CP. Results from this study indicate that the low digestibility of SBM might have favoured the positive effect of β-mannanase supplementation.

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“…An important group of polysaccharides is represented by polygalactomannans (PGMs), mainly obtained from the endosperm of the seeds of leguminous plants, where they represent a reserve source for carbon and energy upon germination [9]. Nowadays, the most widely employed PGM for industrial purposes is obtained from the guar plant (Cyamopsis tetragonolobus), mainly cultivated in India [10].…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays, the most widely employed PGM for industrial purposes is obtained from the guar plant (Cyamopsis tetragonolobus), mainly cultivated in India [10]. Other important, but commercially less exploited PGMs are extracted from locust bean (Ceratonia siliqua) and fenugreek (Trigonella foenum-graecum), spontaneous plants of the Mediterranean regions, from tara (Caesalpinia spinosa), native to South America, and from sesbania (Sesbania bispinosa), native to Asia and Africa [9,11]. PGMs are high-molecular weight polymers of about 1-2 MDa [12,13].…”

Section: Introductionmentioning

confidence: 99%

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Quantification of Sugar Epimers in Polygalactomannans by ESI-MS/MS

2015

J Anal Bioanal Tech

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Galactomannan: A versatile biodegradable seed polysaccharide

Cited by 251 publications

References 43 publications

An aerogel obtained from chemo-enzymatically oxidized fenugreek galactomannans as a versatile delivery system

An aerogel obtained from chemo-enzymatically oxidized fenugreek galactomannans as a versatile delivery system

Ileal digestibility of nutrients and amino acids in low quality soybean meal sources treated with β-mannanase for growing pigs

Quantification of Sugar Epimers in Polygalactomannans by ESI-MS/MS

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