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Chen Y, Zhu Z, Shi K, Jiang Z, Guan C, Zhang L, Yang T, Xie F. Shellac-based materials: Structures, properties, and applications. Int J Biol Macromol 2024; 279:135102. [PMID: 39197605 DOI: 10.1016/j.ijbiomac.2024.135102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 08/20/2024] [Accepted: 08/25/2024] [Indexed: 09/01/2024]
Abstract
Shellac stands out among natural polymers as the sole animal-derived resin, boasting a complex polyester composition comprising polyhydroxy long-chain fatty acids and sesquiterpene acids. Its unique attributes include biocompatibility, non-toxicity, distinctive amphiphilicity, superb film-forming and adhesive properties, excellent dielectric properties, rapid drying, and solubility in alkaline solutions while resisting acidic ones. These exceptional qualities have propelled shellac beyond its traditional role as a varnish and decorative material, positioning it as a viable option for diverse applications such as food packaging, pharmaceutical formulations, electronic devices, fiber dyeing, and wood restoration. Furthermore, shellac serves as a crucial carbon source for graphene materials. This review comprehensively explores shellac's contributions to prolonging food shelf life, enhancing the carbon sourcing of graphene materials, facilitating the delivery of active substances, boosting the performance of organic field-effect transistors, enabling environmentally friendly textile dyeing, and providing protective coatings for wood. Additionally, it delves into the current limitations and future directions of shellac's applications. By disseminating this knowledge, we aim to deepen researchers' comprehension of shellac and inspire further exploration, thereby fostering sustainable advancements across various industries.
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Affiliation(s)
- Ying Chen
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, China
| | - Zhu Zhu
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, China
| | - Kunbo Shi
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, China
| | - Zhiyao Jiang
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, China
| | - Chengran Guan
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, China; Jiangsu Dairy Biotechnology Engineering Research Center, Yangzhou, Jiangsu 225127, China
| | - Liang Zhang
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, China.
| | - Tao Yang
- School of Pharmacy, Hainan Medical University, Haikou 571199, China.
| | - Fengwei Xie
- Department of Chemical Engineering, University of Bath, Bath BA2 7AY, United Kingdom.
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Daza LD, Montealegre MÁ, Reche C, Sandoval-Aldana A, Eim VS, Váquiro HA. Chachafruto starch: Physicochemical characterization, film-forming properties, and 3D printability. Int J Biol Macromol 2023; 247:125795. [PMID: 37442511 DOI: 10.1016/j.ijbiomac.2023.125795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/26/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023]
Abstract
This work aimed to characterize the physicochemical, film-forming properties, and 3D printability of a nonconventional starch from chachafruto. The chachafruto native starch (CHS) presented an excellent extraction yield (10 % db) and purity (99 % db), along with an oval and round morphology, a smooth surface with few defects, and a mean diameter of 15.4 μm. The typical B-type diffraction pattern was observed in the CHS with a crystallinity of 17.4 %. The starch presented a paste temperature of 66.1 °C, an enthalpy of 11.5 J g-1, and a final viscosity of 596 Brabender Units. The thermal analysis demonstrated good thermal stability. The evaluated film presented a reduction in crystallinity (8.18 %) to the CHS, which generated a good elasticity in the material. Likewise, it presented a continuous structure without cracks, providing good barrier properties (2.3 × 10-9 g∙m-1∙s-1∙Pa-1) and high transparency. Meanwhile, 3D prints prepared with CHS showed good textural properties and high consistency. The morphological analysis showed that the prints generated organized cell structures. However, high concentrations of CHS were not efficient in obtaining 3D prints. The results of this work demonstrate the tremendous industrial potential of chachafruto as an unconventional source of starch and some alternative uses for adding value to the crop.
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Affiliation(s)
- Luis Daniel Daza
- Department of Chemistry, University of the Balearic Islands, Ctra. Valldemossa km. 7.5, 07122 Palma de Mallorca, Spain; Departamento de Producción y Sanidad Vegetal, Facultad Ingeniería Agronómica, Universidad del Tolima, 730006 Ibagué, Colombia.
| | - Miguel Ángel Montealegre
- Departamento de Producción y Sanidad Vegetal, Facultad Ingeniería Agronómica, Universidad del Tolima, 730006 Ibagué, Colombia
| | - Cristina Reche
- Department of Chemistry, University of the Balearic Islands, Ctra. Valldemossa km. 7.5, 07122 Palma de Mallorca, Spain
| | - Angélica Sandoval-Aldana
- Departamento de Producción y Sanidad Vegetal, Facultad Ingeniería Agronómica, Universidad del Tolima, 730006 Ibagué, Colombia
| | - Valeria Soledad Eim
- Department of Chemistry, University of the Balearic Islands, Ctra. Valldemossa km. 7.5, 07122 Palma de Mallorca, Spain.
| | - Henry Alexander Váquiro
- Departamento de Producción y Sanidad Vegetal, Facultad Ingeniería Agronómica, Universidad del Tolima, 730006 Ibagué, Colombia.
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Yu X, Yang Y, Liu Q, Jin Z, Jiao A. A hydroxypropyl methylcellulose/hydroxypropyl starch nanocomposite film reinforced with chitosan nanoparticles encapsulating cinnamon essential oil: Preparation and characterization. Int J Biol Macromol 2023; 242:124605. [PMID: 37116838 DOI: 10.1016/j.ijbiomac.2023.124605] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/31/2023] [Accepted: 04/21/2023] [Indexed: 04/30/2023]
Abstract
Active packaging derived from polysaccharides plays an important role in prolonging the shelf life of food. In this study, cinnamon essential oil (CEO)-loaded chitosan nanoparticles (CNs) were prepared and embedded in hydroxypropyl methylcellulose (HPMC)/hydroxypropyl starch (HPS) blends to enhance the physicochemical and biofunctional properties of the formed films. Different concentrations (25, 50, 75, and 100 μL/mL) of CEOs were encapsulated with CNs to form CEO-CNs, as confirmed by Fourier Transform Infrared Spectrometer (FTIR), X-Ray Diffraction (XRD), and scanning electron microscope (SEM) images. The prepared CEO-CNs were incorporated into the HPMC/HPS film-forming matrix to prepare reinforced nanocomposite films. SEM images showed that the CEO-CNs were dispersed in the HPMC/HPS matrix, thus filling the void space in the composite matrix and significantly improving the mechanical and barrier properties of the bio-nanocomposite films. The elongation at break of the reinforced films improved from 8.54 ± 0.53 MPa to 24.81 ± 0.47 MPa, and the water vapor permeability was reduced by nearly 30 %. FTIR and XRD analyses indicated the formation of hydrogen bonds between CEO-CNs and HPMC/HPS polymer molecules. Release studies showed that the nanocomposite film was capable of sustained release of CEO, which imparted antioxidant (radical scavenging activity of 27.66-42.19 %) and antimicrobial properties (inhibition of Escherichia coli and Aspergillus flavus growth). Therefore, these HPMC/HPS nanocomposite films with enhanced properties may have great potential for food preservation.
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Affiliation(s)
- Xuepeng Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Yueyue Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.
| | - Qing Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Aiquan Jiao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, PR China.
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Daza LD, Umaña M, Simal S, Váquiro HA, Eim VS. Non-conventional starch from cubio tuber (Tropaeolum tuberosum): Physicochemical, structural, morphological, thermal characterization and the evaluation of its potential as a packaging material. Int J Biol Macromol 2022; 221:954-964. [PMID: 36108747 DOI: 10.1016/j.ijbiomac.2022.09.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/16/2022] [Accepted: 09/10/2022] [Indexed: 11/28/2022]
Abstract
This work aimed to characterize the physicochemical, structural, morphological, and thermal properties of a non-conventional starch obtained from cubio (Tropaeolum tuberosum), as well as to evaluate the potential use of this native Andean tuber in the preparation of biodegradable packaging. The cubio starch (CUS) showed an intermediated apparent amylose content (31.2 %) accompanied by a high CIE whiteness index (90.8). About the morphology and particle size, the CUS exhibited irregular oval and round shapes and a smooth surface with a mean particle diameter of 14.04 ± 0.1 μm. Although it showed good stability regarding pasting properties, the final viscosity was low. Native CUS exhibits a typical B-type diffraction structure, with a relative crystallinity of 16 %. The resistant starch (RS) fraction of the CUS was 94 %, indicating a low susceptibility to enzymatic hydrolysis. The thermal analysis demonstrated that the CUS showed good thermal stability. Additionally, the films prepared using CUS as raw material showed continuous surfaces without porosities, good thermal stability, and high transparency. The results of this work demonstrate the industrial potential of the CUS as it presents characteristics comparable to commercial potato starch.
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Affiliation(s)
- Luis Daniel Daza
- Department of Chemistry, University of the Balearic Islands, Ctra Valldemossa, km 7.5, Palma de Mallorca, 07122 Baleares, Spain; Departamento de Producción y Sanidad Vegetal, Facultad Ingeniería Agronómica, Universidad del Tolima, 730006 Ibagué, Colombia.
| | - Mónica Umaña
- Department of Chemistry, University of the Balearic Islands, Ctra Valldemossa, km 7.5, Palma de Mallorca, 07122 Baleares, Spain
| | - Susana Simal
- Department of Chemistry, University of the Balearic Islands, Ctra Valldemossa, km 7.5, Palma de Mallorca, 07122 Baleares, Spain
| | - Henry Alexander Váquiro
- Departamento de Producción y Sanidad Vegetal, Facultad Ingeniería Agronómica, Universidad del Tolima, 730006 Ibagué, Colombia
| | - Valeria Soledad Eim
- Department of Chemistry, University of the Balearic Islands, Ctra Valldemossa, km 7.5, Palma de Mallorca, 07122 Baleares, Spain.
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Daza LD, Parra DO, Rosselló C, Arango WM, Eim VS, Váquiro HA. Influence of Ulluco Starch Modified by Annealing on the Physicochemical Properties of Biodegradable Films. Polymers (Basel) 2022; 14:polym14204251. [PMID: 36297829 PMCID: PMC9610937 DOI: 10.3390/polym14204251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/01/2022] [Accepted: 10/05/2022] [Indexed: 11/16/2022] Open
Abstract
This work aimed to evaluate the use of annealing (ANN) ulluco starch in the preparation of biodegradable films and its impact on the physicochemical properties of the materials. Three film samples (FS1, FS2, and FS3) were prepared at a fixed starch concentration (2.6% w/v) using glycerol as a plasticizer and then compared to a control sample (FSC) prepared with native ulluco starch. The physical, mechanical, and thermal properties of the films were evaluated. The use of ANN starch decreased the solubility (from 21.8% to 19.5%) and the swelling power (from 299% to 153%) of the film samples. In addition, an increase in opacity and relative crystallinity (from 7.54% to 10.5%) were observed. Regarding the thermal properties, all the samples presented high stability to degradation, with degradation temperatures above 200 °C. However, the samples showed deficiencies in their morphology, which affected the barrier properties. The use of ANN starch has some advantages over native starch in preparing films. However, more analysis is needed to improve the barrier properties of the materials. This work reveals the potential of the ANN ulluco starch for biodegradable film preparation. In addition, the use of modified ulluco starch is an alternative to add value to the crop, as well as to replace non-biodegradable materials used in the preparation of packaging.
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Affiliation(s)
- Luis Daniel Daza
- Department of Chemistry, University of the Balearic Islands, Ctra Valldemossa, km 7.5, 07122 Palma de Mallorca, Baleares, Spain
- Departamento de Producción y Sanidad Vegetal, Facultad Ingeniería Agronómica, Universidad del Tolima, Ibagué 730006, Colombia
- Correspondence: (L.D.D.); (H.A.V.)
| | - Daniela O. Parra
- Departamento de Producción y Sanidad Vegetal, Facultad Ingeniería Agronómica, Universidad del Tolima, Ibagué 730006, Colombia
| | - Carmen Rosselló
- Department of Chemistry, University of the Balearic Islands, Ctra Valldemossa, km 7.5, 07122 Palma de Mallorca, Baleares, Spain
| | - Walter Murillo Arango
- Departamento de Química, Facultad de Ciencias, Universidad del Tolima, Ibagué 730006, Colombia
| | - Valeria Soledad Eim
- Department of Chemistry, University of the Balearic Islands, Ctra Valldemossa, km 7.5, 07122 Palma de Mallorca, Baleares, Spain
| | - Henry Alexander Váquiro
- Departamento de Producción y Sanidad Vegetal, Facultad Ingeniería Agronómica, Universidad del Tolima, Ibagué 730006, Colombia
- Correspondence: (L.D.D.); (H.A.V.)
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Chen Y, Duan Q, Zhu J, Liu H, Chen L, Yu L. Anchor and bridge functions of APTES layer on interface between hydrophilic starch films and hydrophobic soyabean oil coating. Carbohydr Polym 2021; 272:118450. [PMID: 34420712 DOI: 10.1016/j.carbpol.2021.118450] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/28/2021] [Accepted: 07/13/2021] [Indexed: 12/23/2022]
Abstract
One of the well-recognized weaknesses of starch-based materials is their sensitivity to moisture, which limits their expanding applications. Natural materials, soyabean oils have been used as a coating for starch film, but the poor interface between hydrophilic starch and hydrophobic soyabean oil needs to be improved. In this work, (3-Aminopropyl) triethoxysilane (APTES) was used to reinforce the bonding between starch matrix and the coating of bio-based acrylated epoxidized soyabean oil (AESO). Study results show that APTES interacted effectively with both starch films via hydrogen bonding, and chemical bonds with AESO through the Michael addition reaction. Pull adhesion and cross-cutting tests demonstrated that the interfacial adhesion was significantly improved after treating their surface with APTES. The interfacial adhesion strength increased over 4 times after treating with 1.6 wt% APTES. The starch films treated with APTES and AESO coating were intact after soaking in water for more than 2 h.
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Affiliation(s)
- Ying Chen
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Department of Food Science and Technology, National University of Singapore, Science Drive 2, 117542, Singapore
| | - Qingfei Duan
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jian Zhu
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Hongsheng Liu
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Sino-Singapore International Joint Research Institute, Knowledge City, Guangzhou 510663, China
| | - Ling Chen
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Long Yu
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Sino-Singapore International Joint Research Institute, Knowledge City, Guangzhou 510663, China.
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