Wheat straw hemicelluloses added with cellulose nanocrystals and citric acid. Effect on film physical properties

Pereira, Paulo; Waldron, Keith W.; Wilson, David R.; Cunha, Arcelina Pacheco; Brito, Edy Sousa de; Rodrigues, Tigressa H.S.; Rosa, Morsyleide de Freitas; Azeredo, Henriette Monteiro Cordeiro de

doi:10.1016/j.carbpol.2017.02.019

Cited by 98 publications

(39 citation statements)

References 60 publications

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“…e peak appearance shows Journal of Chemistry a change in the chemical structure after the addition of citric acid, indicating that there was some cross-linking that may have taken place between citric acid and the ber. e decrease in intensity was observed in the band at 1626 cm −1 (absorbed water in the lms) when citric acid was present, probably because some of the hydrophilic groups were involved in the cross-linking, and thus, the lms absorbed less water [25]. is is consistent with the result of tensile strength and the WVP.…”

Section: Ftir Analysis Of Eaep Residuesupporting

confidence: 84%

Physical-Chemical Properties of Edible Film Made from Soybean Residue and Citric Acid

Sami

et al. 2018

Journal of Chemistry

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The effect of citric acid on the properties of soybean enzyme-assisted aqueous extraction processing (EAEP) residue edible film was studied. The washed soybean EAEP residue was produced by the process of EAEP. It was determined that the washed soybean EAEP residue is rich in fibers (76.10 ± 1.03%) and has lower oil and protein contents (7.74 ± 0.11% and 3.50 ± 0.20%, resp.). Edible films intended for food packaging have been produced from the washed EAEP residue combined with glycerol, different concentrations of citric acid (0%, 10%, 15%, 20%, 25%, and 30%), and sodium hypophosphite. The spectra have evidenced that the cross-linking reaction of citric acid and fibers has taken place in the residue. 30-CA films showed the highest tensile strength (17.52 MPa) and the lowest water vapor permeability (7.21 g·cm−1·s−1·Pa−1). Also, it indicated that citric acid can cross-link with the hydroxyls of polysaccharide and improve the compatibilization between the polymeric molecules to improve the intermolecular interaction between polysaccharide molecules, so that the water uptake is reduced. The smooth surface and better translucency of the films suggest that the EAEP residue films treated with citric acid are suitable for application in food packaging.

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Section: Ftir Analysis Of Eaep Residuesupporting

confidence: 84%

Physical-Chemical Properties of Edible Film Made from Soybean Residue and Citric Acid

Sami

et al. 2018

Journal of Chemistry

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“…Table 6 shows examples of NCCs used as fillers in polymeric matrices. Cassava starch Solution casting Food packaging [62] Sugar palm starch Solution casting Food packaging [115] Wheat starch Solution casting Food packaging [87] Tuber native potato Solution casting Packaging [116] Cereal corn Solution casting Packaging [116] Legume pea Solution casting Packaging [116] Waterborne acrylate Solution mixing Corrosion protection [79] Wheat straw hemicelluloses Water hyacinth fiber NFC Yam bean starch [127] Wheat straw NFC No attempts were made with composites [29] Wheat straw NCC Wheat straw hemicelluloses [96] Wood pulp NFC/ NCC PVA (10 wt% filler), PLA (5 wt% filler) [120,128] Cassava bagasse NCC Cassava starch [62] Ramie NCC Wheat starch [87] Phormium tenax (harakeke) fiber NCC PVA [83] Flax fiber NCC PVA [83] Potato peel fiber NCC Starch [84] Table 5. Different nanocellulose sources of reinforcement fillers in polymer matrices.…”

Section: Applications Of Nanocrystalline Cellulose From Agro-waste Fimentioning

confidence: 99%

Production, Processes and Modification of Nanocrystalline Cellulose from Agro-Waste: A Review

Ilyas¹,

Sapuan²,

Ibrahim³

et al. 2020

Nanocrystalline Materials

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Nanocrystalline cellulose is a renewable nanomaterial that has gained huge attention for its use in various applications from advanced biomedical material to food packaging material due to its exceptional physical and biological properties, such as high crystallinity degree, large specific surface area, high aspect ratio, high thermal resistance, good mechanical properties, abundance of surface hydroxyl groups, low toxicity, biodegradability, and biocompatibility. However, they still have drawbacks: (1) sources of raw materials and its utilization in the production of nanocomposites and (2) high chemical and energy consumption regarding the isolation of macro-sized fibers to nano-sized fibers. The incorporation of hydrophilic nanocrystalline cellulose within hydrophobic polymer limits the dispersion of nano-sized fibers, thus resulting in low mechanical properties of nanocomposites. Hence, surface modification on nano-sized fiber could be a solution to this problem. This review focuses on the advanced developments in pretreatment, nanocrystalline production and modifications, and its application in food packaging, biomedical materials, pharmaceutical, substitution biomaterials, drug excipient, drug delivery automotive, and nanopaper applications.

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“…It was found that cellulose nanocrystalline (CNC) is capable of overcoming this disadvantage. Pereira and co-workers [ 39 ] added CNC to wheat straw hemicellulose for film preparation, and found that the addition of CNC effectively improved the tensile strength, tensile modulus, and moisture resistance of the blend film ( Table 5 ). A possible explanation is that with the addition of CNC, a large number of hydrogen bond networks are generated in the composite film [ 40 ].…”

Section: Modification Of Hemicellulosementioning

confidence: 99%

Hemicellulose-Based Film: Potential Green Films for Food Packaging

et al. 2020

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Globally increasing environmental awareness and the possibility of increasing price and dwindling supply of traditional petroleum-based plastics have led to a breadth of research currently addressing environmentally friendly bioplastics as an alternative solution. In this context, hemicellulose, as the second richest polysaccharide, has attracted extensive attention due to its combination of such advantages as abundance, biodegradability, and renewability. Herein, in this review, the latest research progress in development of hemicellulose film with regard to application in the field of food packaging is presented with particular emphasis on various physical and chemical modification approaches aimed at performance improvement, primarily for enhancement of mechanical, barrier properties, and hydrophobicity that are essential to food packing materials. The development highlights of hemicellulose film substrate are outlined and research prospects in the field are described.

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Wheat straw hemicelluloses added with cellulose nanocrystals and citric acid. Effect on film physical properties

Cited by 98 publications

References 60 publications

Physical-Chemical Properties of Edible Film Made from Soybean Residue and Citric Acid

Physical-Chemical Properties of Edible Film Made from Soybean Residue and Citric Acid

Production, Processes and Modification of Nanocrystalline Cellulose from Agro-Waste: A Review

Hemicellulose-Based Film: Potential Green Films for Food Packaging

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