Characterization of pre-gelatinized maize starch-zein blend films produced at alkaline pH

Teklehaimanot, Welday Hailu; Ray, Suprakas Sinha; Emmambux, M. Naushad

doi:10.1016/j.jcs.2020.103083

Cited by 15 publications

(13 citation statements)

References 32 publications

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“…Starch is a highly annually renewable and high-molecular-weight polymer material that is composed of two types of α-glucan, namely amylose and amylopectin [9,10]. Amylose is a linear polysaccharide that is connected by α-1,4-glycosidic bonds, and that presents excellent filmforming property similar to fibers [11].…”

Section: Introductionmentioning

confidence: 99%

“…erefore, increasing efforts have been devoted to the research of various resources of starch-based films [9,15,16]. e maize starch matrix film was produced and it was found that the films possessed low tensile strength (TS) and water vapor permeability (WVP), which could be enhanced by zein blended, and great compatibility with maize starch matrix [10]. Chollakup et al [17] investigated cassava starch film, who proved the hydrophobic interactions and hydrogen bonding present in cassava starch and whey protein blended films to explain their barrier mechanisms at the molecular level.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Characterization of Biodegradable Composited Films Based on Potato Starch/Glycerol/Gelatin

Niu

et al. 2021

Journal of Food Quality

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The use of plastics is resisted worldwide. Therefore, finding alternatives to plastic packaging products is an urgent issue. This work was dedicated to the preparation of biodegradable composited films with potato starch, glycerol, and gelatin. The formulation of the biodegradable film was first optimized via response surface methodology combined with the multi-index comprehensive evaluation method that considered physical properties (thickness, water solution (WS), tensile strength (TS) and elongation at break (E%)) and barrier property (light transmittance (T%)). Results indicated that the optimal conditions were 2.5% starch, 2.0% glycerol, and 1.5% gelatin (based on water). The optimized film presented excellent properties with TS of 4.47 MPa, E% of 109.91%, WS of 43.64%, and T% of 41.21% at 500 nm, and the comprehensive evaluation score of the composite film was 28.68. Moreover, a model verification experiment was further conducted, which proved that the predicted value highly matched experimental values, indicting the credibility and accuracy of the model. The resulting films were further characterized on the basis of rheological measurements, Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The rheological measurements proved that the film-forming solution exhibited low shear viscosity and non-Newtonian fluid behavior. FTIR and SEM revealed excellent compatibility among starch, glycerol, and gelatin. Hence, the resulting optimized film may be expected to provide theoretical basis and technical support for the food packing industry.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Biodegradable Composited Films Based on Potato Starch/Glycerol/Gelatin

Niu

et al. 2021

Journal of Food Quality

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“…Further, compared to other non-plasticized materials, when sorbitol (30-40%) was used, it resulted in a comparatively low OVP value [81]. Thirathumthavorn et al [82] promulgated that the mung bean starch films that were prepared using sorbitol as plasticized material possess significantly lower OVP value as compared to native/rice starch (acid-treated)/tapioca/rice (acid-treated) reported in previously published data [83,84]. The complexity of starch also affects the different parameters of films in a notable manner [85].…”

Section: Barrier Propertiesmentioning

confidence: 96%

Functionality and Applicability of Starch-Based Films: An Eco-Friendly Approach

Punia

Purewal

Trif

et al. 2021

Foods

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The accumulation of high amounts of petro-based plastics is a growing environmental devastation issue, leading to the urgent need to innovate eco-safe packaging materials at an equivalent cost to save the environment. Among different substitutes, starch-based types and their blends with biopolymers are considered an innovative and smart material alternative for petrol-based polymers because of their abundance, low cost, biodegradability, high biocompatibility, and better-quality film-forming and improved mechanical characteristics. Furthermore, starch is a valuable, sustainable food packaging material. The rising and growing importance of designing starch-based films from various sources for sustainable food packaging purposes is ongoing research. Research on “starch food packaging” is still at the beginning, based on the few studies published in the last decade in Web of Science. Additionally, the functionality of starch-based biodegradable substances is technically a challenge. It can be improved by starch modification, blending starch with other biopolymers or additives, and using novel preparation techniques. Starch-based films have been applied to packaging various foods, such as fruits and vegetables, bakery goods, and meat, indicating good prospects for commercial utilization. The current review will give a critical snapshot of starch-based films’ properties and potential applicability in the sustainable smart (active and intelligent) new packaging concepts and discuss new challenges and opportunities for starch bio composites.

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“…Zein has been shown to improve the tensile strength and toughness of starch-zein films plasticized with glycerol and polyethylene glycol-400. 6,8 The solubilization of starch and zein by [bmim]Cl (section 3) may have led to even better interaction of these two biopolymers, thereby enhancing mechanical properties especially tensile strength. The elongation at break of SP-IL films was found to be substantially higher than its tensile strength.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…This work also reported higher film barrier properties when either uncomplexed starch or zein content was more. 8 As mentioned above, composite films enhanced the overall characteristics of films; however, significant improvements in mechanical and thermal properties were seldom possible without plasticizers. Plasticizers provided necessary workability to biopolymers which otherwise inherently have poor mechanical as well as thermal properties making end-use application difficult.…”

Section: Introductionmentioning

confidence: 99%

Development of ionic liquid plasticized high‐tensile starch‐protein‐sorghum bran composite films with antimicrobial activity

Tyagi

Wang

Bhattacharya

2022

J of Applied Polymer Sci

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Ionic liquid (1‐butyl‐3‐methyl imidazolium chloride—[bmim]Cl) was used as a plasticizer alternative to enhance the mechanical strength of the starch‐zein composite films. Additionally, sorghum bran extract (SBE) was utilized as a sustainable source of bioactive compounds to introduce the antimicrobial activity to the composite films. [Bmim]Cl provided better solubilization capacity thereby enhancing the compatibility of film components. Thus, [bmim]Cl substantially improved the tensile strength and elongation at break of the ionic liquid plasticized (8.93 ± 1.59 MPa and 29.53 ± 0.86%) as well as sorghum bran functionalized films (8.99 ± 0.42 MPa and 21.91 ± 0.76%). Incorporation of SBE to the potato starch‐zein film solution enhanced opacity and attributed antioxidant properties to the composite film and that endorsed the possibility of inhibiting lipid peroxidation. Furthermore, the sorghum bran functionalized films possessed antimicrobial activity against Escherichia coli, making them appropriate for active packaging applications.

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Characterization of pre-gelatinized maize starch-zein blend films produced at alkaline pH

Cited by 15 publications

References 32 publications

Preparation and Characterization of Biodegradable Composited Films Based on Potato Starch/Glycerol/Gelatin

Preparation and Characterization of Biodegradable Composited Films Based on Potato Starch/Glycerol/Gelatin

Functionality and Applicability of Starch-Based Films: An Eco-Friendly Approach

Development of ionic liquid plasticized high‐tensile starch‐protein‐sorghum bran composite films with antimicrobial activity

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