The effects of mannanase activity on viscosity in different gums

Erkan, Selime Benemir; Özcan, Ali; Yılmazer, Cansu; Gürler, Hilal Nur; Karahalil, Ercan; Germeç, Mustafa; Yatmaz, Ercan; Küçükçetin, Ahmet; Turhan, İrfan

doi:10.1111/jfpp.14820

Cited by 5 publications

(7 citation statements)

References 52 publications

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“…Erkan et al. (2020) reported a significant decrease in viscosity on Locust bean gum and guar gum with the use of β‐mannanase. This results showed that the cellulase enzyme can be used for gum modification and confirmed the structural changes occurring during hydrolysis.…”

Section: Resultsmentioning

confidence: 99%

“…Several authors have reported that enzymatic treatment leads to a reduction on chain length and molar mass of galactomannans (Buriti et al, 2014;Jian et al, 2013;Mudgil et al, 2012aMudgil et al, , 2014, and this also explained the reduction in viscosity. Erkan et al (2020) reported a significant decrease in viscosity on…”

Section: Gel Permeation Chromatographymentioning

confidence: 99%

“…However, their solutions have higher viscosity. Consequently, water‐soluble application in industry and cleaning of gum‐processing equipment is usually harder (Erkan et al., 2020). Using enzymatic hydrolysis could have overcome the negative effect of viscosity (Erkan et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

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Low‐viscosity dietary fiber production by enzymatic hydrolysis of galactomannan from Caesalpinia pulcherrima seeds: Optimization and physicochemical characterization

Passos

Lovera

Bastos

et al. 2021

Food Processing Preservation

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This study optimizes the enzymatic hydrolysis of galactomannan from Caesalpinia pulcherrima seeds to produce a low-viscosity dietary fiber. The effects of cellulase concentration (4.17-9.83 U/g of galactomannan) and hydrolysis time (98-392 min) on two response variables were evaluated using RSM. Some physical and chemical characteristics were determined on the hydrolysate selected in comparison with galactomannan. Both factors negatively affected the intrinsic viscosity, although positively influenced (p < .05) the reducing sugar content. The optimum condition was 9 U/g with 300 min, with 1.28 dl/g of intrinsic viscosity and 1.33% of reducing sugar. The hydrolysis increased total dietary fiber (1.9%) and soluble dietary fiber (2.8%) contents and decreased M n from 26.4 × 10 4 to 3.2 × 10 4 g/mol. Thermal and scanning electron microscope analysis suggested internal and external molecular changes, respectively. However, FT-IR, 1 H, and 13 C-NMR spectra showed characteristic chemical bonds and a mannose/galactose ratio of 2:1. This hydrolyzed galactomannan is suitable as a low-viscose dietary fiber with potential applications in food industry. Novelty Impact Statement• Galactomannan from seeds of Caesalpinia pulcherrima was successfully hydrolyzed.• Enzymatic hydrolysis caused a decrease of 87.72% in molecular mass.• The hydrolyzed product remained high in dietary fiber (84.3%).

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Section: Resultsmentioning

confidence: 99%

Section: Gel Permeation Chromatographymentioning

confidence: 99%

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Low‐viscosity dietary fiber production by enzymatic hydrolysis of galactomannan from Caesalpinia pulcherrima seeds: Optimization and physicochemical characterization

Passos

Lovera

Bastos

et al. 2021

Food Processing Preservation

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“…is in the status of Generally Recognized as Safe, its products are also widely used in the food, cosmetics, pharmaceutical, medical, and biofuel industries. [4][5][6] Many researchers have used it in their studies to produce enzymes such as inulinases, [4][5][6][7][8][9][10][11][12] βmannanases and mannooligosaccharides, [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] protease, 28 lipase, 29 polygalacturonase, 30 amylase, 31 cellulase, 32 and xylanase. 33 Regarding mathematical modeling, the estimation of the observed values of the fermentations regarding inulinase production has been made.…”

Section: Introductionmentioning

confidence: 99%

“…is in the status of Generally Recognized as Safe, its products are also widely used in the food, cosmetics, pharmaceutical, medical, and biofuel industries 4–6 . Many researchers have used it in their studies to produce enzymes such as inulinases, 4–12 β‐mannanases and mannooligosaccharides, 13–27 protease, 28 lipase, 29 polygalacturonase, 30 amylase, 31 cellulase, 32 and xylanase 33 …”

Section: Introductionmentioning

confidence: 99%

Predictive modeling and sensitivity analysis to estimate the experimental data of inulinase fermentation by Aspergillus niger grown on sugar beet molasses‐based medium optimized using Plackett–Burman Design

Germeç

Turhan

2021

Biotech and App Biochem

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The present work aimed to model Aspergillus niger inulinase fermentation performed in the medium using sigmoidal functions, validate the selected models using an independent set of the experimental values, and perform a sensitivity analysis of the selected models. Based on the results, the selected models were Stannard and Fitzhugh models for substrate consumption (R 2 = 0.9976 and 0.9974, respectively), Huang model for inulinase production (R 2 = 0.9967), Weibull model for invertase-type production (R 2 = 0.9963), and modified logistic model for invertase-type activity/inulinase activity ratio (R 2 = 0.9292) with high R 2 values (>0.90). Kinetics predicted by particularly selected models mentioned above fit well with the experimental kinetic results. Besides, validation of the selected models with an independent set of the experimental data indicated that they gave satisfying results with high R 2 values for consumption and production (R 2 > 0.90). Sensitivity analysis of the selected models showed that the yielded R 2 values (R 2 ≥ 0.9775) were in good agreement with those obtained from the selected models. Consequently, A. niger inulinase fermentation was successfully modeled and the selected models were successfully validated with an independent set of the observed data. Besides, the sensitivity analysis also verified the Abbreviations: Bx, Brix; A F , accuracy factor; AIC, Akaike information criterion; AM, Asymmetric model; A m , maximum asymptote; A t , the values estimated at the time "d"; ATCC, American Type Culture Collection; B F , bias factor; BM, Baranyi model; B t and H t , transition functions; CM, Cone model; d, unitless design parameter; e, Euler's number; ED, Endpoint Deviation; FM, Fitzhugh Model; HM, Huang model; h O , parameter that calculates the initial physiological state of production and consumption; IAD, integral absolute deviation; ID, integral deviation; k, parameter that governs the rate at which the response variable approaches its potential maximum value; m, slope; MAE, mean-absolute-error; MGM, modified Gompertz model; MLM, modified logistic model; MMFM, Morgan-Mercer-Flodin model; MPF t , mean area of the substrate consumption and product formation at time t to t + 1; MRM, modified Richards model; MSD, mean standard deviation; PBD, Plackett-Burman Design; P inulinase , inulinase activity; P invertase-type , invertase-type activity; Q, maximum production rate or substrate consumption rate; Q inulinase , maximum inulinase production rate; Q invertase-tip , maximum invertase-type production rate; Q sugar , maximum sugar consumption rate; R 2 , determination coefficient; RMSE, root-mean-square-error; RSS, residual sum of square; S/I ratio, invertase-type activity/Inulinase activity; SM, Stannard model; S max , maximum substrate concentration; S min , minimum substrate concentration; t, sampling time; T L , point where A t = A m /2; v, unitless shape parameter; WM, Weibull model; α, delay phase transition coefficient; β, value to shift consumption and production; δ, allometric constant...

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High NaCl concentrations induce the resistance to thermal denaturation of an extremely halotolerant (salt-activated) β-mannanase from Bacillus velezensis H1

Djelid,

Flahaut,

Oudjama

et al. 2023

World J Microbiol Biotechnol

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constituents of hemicellulose (Jana et al. 2021). The backbone of mannans consists of β-1,4-linked mannose residues with variable degrees of side substitutions (Soni et al. 2016). Hardwoods and grasses are composed of xylans, while softwoods, fruits and seeds are mainly constituted of mannans (Singh et al. 2018). Locust bean gum (LBG) from Ceratonia siliqua (or carob gum), used as a substrate for β-mannanase production in this study, is a mannan material that consists of a β-1,4-linkage mannose backbone with galactose monomers randomly linked by α-1,6 bonds (Mamo 2019). This natural polymer is obtained from the carob tree's seed endosperm, which is widely abundant since ancient times in the Mediterranean region including the region of North Africa (Barak and Mudgil 2014;Brassesco et al. 2021;Erkan et al. 2021). Due to its accessibility and affordability, it has been employed as a source of pure mannans in numerous studies Hadjer Djelid

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The effects of mannanase activity on viscosity in different gums

Cited by 5 publications

References 52 publications

Low‐viscosity dietary fiber production by enzymatic hydrolysis of galactomannan from Caesalpinia pulcherrima seeds: Optimization and physicochemical characterization

Low‐viscosity dietary fiber production by enzymatic hydrolysis of galactomannan from Caesalpinia pulcherrima seeds: Optimization and physicochemical characterization

Predictive modeling and sensitivity analysis to estimate the experimental data of inulinase fermentation by Aspergillus niger grown on sugar beet molasses‐based medium optimized using Plackett–Burman Design

High NaCl concentrations induce the resistance to thermal denaturation of an extremely halotolerant (salt-activated) β-mannanase from Bacillus velezensis H1

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