Effect of Cellulose Nanocrystal Addition on Properties of Corn Starch Edible Films

Abstract

Abstract: The effect of sweet potato cellulose nanocrystals, prepared from sweet potato residue, on water vapor permeability, water-absorbing capacity, solubility, tensile strength and tensile strain at break of corn starch edible films was studied. Corn starch edible films showed a gradual decrease in water vapor permeability, water-absorbing capacity, solubility and tensile strain at break and a gradual increase in tensile strength with increasing concentration of sweet potato cellulose nanocrystals. Addition of sweet potato cellulose nanocrystals at a concentration of 0.4 g/100 mL provided minimum water vapor permeability of corn starch edible films. Minimum water-absorbing capacity, solubility and tensile strain at break and maximum tensile strength were found for corn starch edible films with added sweet potato cellulose nanocrystals at 0.5 g/100 mL. These results suggest that addition of sweet potato cellulose nanocrystals can effectively improve properties of corn starch films.

Key words: corn starch, cellulose nanocrystals, film properties

CLC Number:

TS209

References

[1] Alves V, Costa N, Hilliou L, et al. Design of biodegradable composite films for food packaging[J]. Desalination, 2006, 199(1): 331-333.
[2] Bertuzzi M A, Armada M, Gottifredi J C. Physicochemical characterization of starch based films [J]. Journal of Food Engineering, 2007, 82: 17-25.
[3] Zuluaga R, Putaux J L, Cruz J, et al. Cellulose micro?brils from banana rachis: Effect of alkaline treatments on structural and morphological features[J]. Carbohydrate Polymers, 2009, 76(1): 51-59.
[4] Parra D F, Tadini C C, Ponce P, et al. Mechanical properties and water vapor transmission in some blends of cassava starch edible films[J]. Carbohydrate Polymers, 2004, 58: 475-481.
[5] Kristo E, Biliaderis C G. Physical properties of starch nanocrystal reinforced films[J]. Carbohydrate Polymers, 2007, 29(1): 254-259.
[6] 吴佳敏, 谌小立, 赵国华. 食品胶对甘薯淀粉膜机械及渗透性能的影响[J]. 食品科学, 2009, 30(23): 161-165.
[7] Bai W, Holbery J, Li K C. A technique for production of nanocrystalline cellulose with a narrow size distribution[J]. Cellulose, 2009, 16(3): 455-465.
[8] Yu J G, Wang N, Ma X F. The effects of citric acid on the properties of thermoplastic starch plasticized by glycerol[J].Starch/Starke, 2005, 57: 494-504.
[9] Muller C M O, Yamashita F, Laurindo J B. Evaluation of the effect of glycerol and sorbitol concentration and water activity on the water barrier properties of cassava starch films through a solubility approach[J]. Carbohydrate Polymers, 2007, 10: 1016-1021.
[10] Mali S, Sakanaka L S, Yamashita F, et al. Water sorption and mechanical properties of cassava starch films and their relation to plasticizing effect[J]. Carbohydrate Polymers, 2005, 60: 283-289.
[11] Mali S, Grossmann M V E, Garcia M A, et al. Effects of controlled storage on thermal, mechanical and barrier properties of plasticized films from different starch sources[J]. Journal of Food Engineering, 2006, 75: 453-460.
[12] Angles M N, Dufrense A. Plasticized starch/tunicin whiskers nanocomposites.1. Structural analysis[J]. Macromolecules 2000, 33: 8344-8353.
[13] Shi R, Zhang Z Z, Liu Q Y, et al. Characterization of citric acid/glycerol co-plasticized thermoplastic starch prepared by melt blending[J]. Carbohydrate Polymers, 2007, 69: 748–755.
[14] 国家质量监督检验检疫总局, 中国国家标准化管理委员会. GB2007/T1040—2006塑料拉伸性能的测定[S]. 北京: 中国标准出版社, 2006.
[15] Mali S, Grossmann M V E, Garcia M A, et al. Mechanical and thermal properties of yam starch films [J]. Food Hydrocolloids, 2005, 19: 157-164.
[16]?turcova A, Davies G R, Eichhorn S J. Elastic modulus and stress transfer properties of tunicate cellulose whiskers[J]. Biomacromolecules, 2005, 6: 1055–1061.
[17] 赵力超, 彭志妮, 游曼洁, 等. 增塑剂对改性纤维素膜性能的影响及其机理研究[J]. 食品科学, 2010, 31(1): 105-109.
[18] Gaspar M, Benko Z, Dogossy G, et al. Reducing water absorption in compostable starch-based plastics[J]. Polymer Degradation and Stability, 2005, 90: 563-569.
[19] Viga-Santos P, Oliveria L M, Cereda M P, et al. Sucrose and inverted sugars as plasticizer. Effect on cassava starch egelatin ?lm mechanical properties, hydrophilicity and water activity[J]. Food Chemistry, 2007, 103: 255-262.
[20] Ban W, Song J, Argyropoulos D S, et al. Improving the physical and chemical functionality of starch-derived films with biopolymers[J]. Appl. Polym. Sci, 2006, 100: 2542-2548.
[21] Vilaseca F, Mendez J A, Pelach A, et al. Composite materials derived from biodegradable starch polymer and jute strands[J]. Process Biochemistry, 2007, 42: 329-334.
[22] Su J F, Huang Z, Yuan X Y, et al. Structure and properties of carboxymethyl cellulose/soy protein isolate blend edible ?lms cross linked by Maillard reactions[J]. Carbohydrate Polymers, 2010, 79(1): 145-153.