Water resistances and bonding strengths of soy-based adhesives containing different carbohydrates

Chen, Nairong; Qin, Lin; Rao, Jiuping; Zeng, Qinzhi

doi:10.1016/j.indcrop.2013.06.038

Cited by 103 publications

(53 citation statements)

References 28 publications

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“…Linear correlation analysis showed that the correlation coefficient between Y1 and Y2 (r = 0.581) was higher than the critical value (r(0.01, 20) = 0.561) (Field 2009;Coolidge 2012), suggesting that there was a significantly positive relationship between reducing sugar content and bonding strength of SBA. This result implied that the bonding strength of SBA can be effectively enhanced via enzymolyzed polysaccharides in DSF (Chen et al 2013(Chen et al , 2014. …”

Section: Model Fittingmentioning

confidence: 85%

“…It has been demonstrated that SBAs developed from trypsin Kalapathy et al 1995), papain, and urease (Kumar et al 2004) resulted in treated soy protein with higher hydrophobicity, lower viscosity, and better water resistance compared with untreated soy protein. Moreover, several studies have reported that the water resistances of SBAs are also influenced by carbohydrates in DSF Hunt et al 2009;Chen et al 2013) because DSF is a complicated mixture consisting of approximately 50% protein, 40% carbohydrates, and other minor components (Bainy et al 2008;Chen et al 2013). Previous studies by the authors have shown that enzymatic (Viscozyme ® L) pretreatment of the carbohydrates (e.g., polysaccharides) in DSF improved the water resistance of the SBAs as a result of the Maillard reaction that occurred between proteins and monosaccharides (Chen et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Enzymatic Pretreatment on the Preparation and Properties of Soy-Based Adhesive for Plywood

Chen¹,

Zeng²,

Qin³

et al. 2015

BioResources

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Response surface methodology was employed to determine the effects of enzymatic pretreatment temperature, time, and pH on the reducing sugar content and bonding strength of soy-based adhesives (SBAs). Plywood specimens bonded by the SBAs with Pinus massoniana veneer were then produced. A significant positive correlation was observed between reducing sugar content and the bonding strength of SBAs. The effects of pretreatment temperature and time on bonding strength were also significant, but insignificant with respect to reducing sugar content; the effects of enzymatic pretreatment time on response values were the smallest. The optimal enzymatic pretreatment conditions of SBA were a pretreatment temperature of 54 °C, a pretreatment time of 20.0 min, and a pretreatment pH of 5.1. Under these conditions, the reducing sugar content and bonding strength (boiling-water test) of SBAs were 2.93% and 0.62 MPa, which were higher than the control by 113.9% and 30.6%, respectively. X-ray diffraction (XRD) indicated that the ordered degree of soy protein decreased, but the ordered structure had no variation when defatted soy flour was treated by enzymes with combination of acid, salt, and alkali. The SBAs contain more active functional groups and have better water resistance after curing.

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Section: Model Fittingmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Effect of Enzymatic Pretreatment on the Preparation and Properties of Soy-Based Adhesive for Plywood

Chen¹,

Zeng²,

Qin³

et al. 2015

BioResources

Self Cite

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“…Therefore, for the five soy meal-based products reported here, some other factors may also have contributed to the different behavior between soy and cottonseed products. For example, Chen et al (2013) and Lorenz et al (2015) reported that there are many possible impacts from carbohydrate compounds on the adhesive performance of soy meal products. Therefore, we assume that the different carbohydrate profiles in our soy and cottonseed products might be a significant factor in the adhesive performance between the two types of oilseed products.…”

Section: Effect Of Tung Oil On Adhesive Strength Of Soy Meal Productsmentioning

confidence: 99%

Comparison of the Adhesive Performances of Soy Meal, Water Washed Meal Fractions, and Protein Isolates

He¹,

Chapital²,

Cheng³

2016

MAS

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Adhesive bonding of wood plays an increasing role in the forest products industry and is a key factor for efficiently utilizing timber and other lignocellulosic resources. In this work, we obtained five soy meal products through commercial sources or in-house preparations. The protein content was 49.6%, 56.9%, 66.2%, 86.3%, and 91.9% for untreated defatted soy meal, pH 8.5 water washed meal, neutral water washed meal, commercial protein isolate, and in-house prepared protein isolate. The adhesive performances measured by the maximal dry and soaked shear strength of the bonded maple veneers at break were not exactly in the same order of the protein content, indicating that other components (e.g. carbohydrates, metals) might also have played certain roles in the adhesive ability of these products. Data at two press temperatures (i. e. 100, and 130 o C) with or without the addition of tung oil revealed that water washed soy meals behaved more like untreated meal than soy protein isolates. This observation is different from a recent report on the effect of water washing on cottonseed meal products. Thus, further elucidation of the mechanisms or causes of the differing effects of water washing would shed light on the adhesive mechanisms of the two types of oilseed meal materials, thus optimizing use of these materials and their fractions for wood bonding.

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“…The effects of carbohydrates on the water resistance and bonding strengths of soy-based adhesives (SBAs) were studied (33) .…”

Section: Soyaprotein Adhesivementioning

confidence: 99%

Review on the Manufacture of Particleboard from Agro-Wastes Using Different Adhesives

2014

Egypt. J. Chem.

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HE RISING concern towards environmental issues and on the other hand, the need for more versatile polymer-based materials has led to increasing interest about polymer composites filled with natural-organic fillers coming from renewable and biodegradable sources. This review illustrates the main paths and results of researches for manufacturing of particleboard from agro wastes using different synthetic and natural adhesives,as well as appropriate references for further in-depth studies.

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Water resistances and bonding strengths of soy-based adhesives containing different carbohydrates

Cited by 103 publications

References 28 publications

Effect of Enzymatic Pretreatment on the Preparation and Properties of Soy-Based Adhesive for Plywood

Effect of Enzymatic Pretreatment on the Preparation and Properties of Soy-Based Adhesive for Plywood

Comparison of the Adhesive Performances of Soy Meal, Water Washed Meal Fractions, and Protein Isolates

Review on the Manufacture of Particleboard from Agro-Wastes Using Different Adhesives

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