Abstract
Gas permeability of films is essentially important for fresh products packaging. The flexible poly(ε-caprolactone) (PCL) was incorporated into the backbone of poly(L-lactic acid) (PLLA) to improve the flexibility and gas permeability of PLLA. The effects of different PCL middle blocks on the mechanical properties, oxygen (O2), carbon dioxide (CO2) and water vapor permeative properties of PLLA-PCL-PLLA triblock copolymers were evaluated, as well as its preservation effect on strawberry. The results showed that both the PCL and PLLA blocks kept amorphous state, and phase separation occurred in this immiscible system. The PCL play a role of gas passage, the CO2 permeability and CO2/O2 perm-selective ratio of neat PLLA film improved 2–3 times with the incorporation of higher molecular weight PCL. In addition, the PLLA-PCL-PLLA films presented a better toughness after large insertion of flexible PCL. Storing experiments showed that the low O2 and high CO2 atmosphere was established inside the package due to the good gas exchange performance of films. Moreover, strawberries still maintained the good sensory quality and Vitamin C contents on 24th day. Such biodegradable PLLA soft films are of great potential in fresh product packaging.
Similar content being viewed by others
REFERENCES
H. Zhang and G. Mittal, Environ. Prog. Sustainable Energy 29, 203 (2010).
S. D. F. Mihindukulasuriya and L. T. Lim, Trends Food Sci. Technol. 40, 149 (2014).
R. Muthuraj, M. Misra and A. K. Mohanty, J. Appl. Polym. Sci. 135, 45726 (2017).
Z. Qian, Polym. Sci., Ser. A 60, 266 (2018).
J. X. Yu, Adv. Mater. Res. 750–752, 221 (2013).
G. Moreno, K. Ramirez, M. Esquivel, and G. Jimenez, J. Renewable Mater. 6, 362 (2017).
D. S. Zhu, J. Y. Liang, Z. Tao, X. H. Cao, X. J. Meng, and J. R. Li, Adv. Mater. Res. 781–784, 1847 (2013).
D. S. Lee, J. D. Jang, and Y. I. Hwang, Int. J. Food Sci. 37, 255 (2002).
M. Marcinkowska-Lesiak, E. PoAwska, and A. Wierzbicka, Food Sci. Technol. Int. 23, 174 (2016).
T. Li and M. Zhang, LWT–Food Sci. Technol. 60, 1046 (2015).
M. Zalewska, M. Marcinkowska-Lesiak, A. Onopiuk, A. Stelmasiak and A. Półtorak, J. Food Process. Preserv. 42, e13839 (2018).
M. Hailu, T. Seyoum Workneh, and D. Belew, J. Food Sci. Technol. 51, 2947 (2014).
M. Jamshidian, E. A. Tehrany, F. Cleymand, L. Stéphane, T. Falher, and D. Stéphane, Carbohydr. Polym. 87, 1763 (2012).
X. Y. Yun, X. F. Li, P. J. Pan, and T. Dong, Rsc Adv. 9, 12354 (2019).
T. Dong, S. Song, M. Liang, Y. Wang, X. Qi, Y. Zhang, X. Yun, and Y. Jin, J. Food Sci. 82, 97 (2016).
H. J. Lehermeier, J. R. Dorgan, and J. D. Way, J. Membr. Sci. 190, 243 (2001).
T. Dong, Z. Yu, J., Wu, Z. Zhao, Z. Yun, Y. Wang, Y. Jin, and J. Yang, Polym. Sci., Ser. A 57, 738 (2015).
A. Ostafinska, I. Fortelny, M. Nevoralova, J. Hodan, J. Kredatusova, and M. Slouf, Rsc Adv. 5, 98971 (2015).
O. Monticelli, M. Calabrese, L. Gardella, A. Fina, and E. Gioffredi, Eur. Polym. J. 58, 69(2014).
M. Penco, G. Spagnoli, I. Peroni, M. A. Rahman, and A. Lazzeri, J. Appl. Polym. Sci. 6, 3528 (2011).
X. Yun, X. Li, Y. Jin, W. Sun, and T. Dong, Polym. Sci., Ser. A 60, 141 (2018).
T. Dong, X.Yun, M. Li, W. Sun, Y. Duan, and Y. Jin, J. Appl. Polym. Sci. 132, 1 (2015).
X. Yun, Y. Wang, M. Li, Y. Jin, Y. Han, and T. Dong, J. Food Process. Preserv. 41, e13247 (2017).
J. Cao, W. Jiang and Y. Zhao, Guidance on Physiological and Biochemical Experiments of Fruits and Vegetables after Harvest (China Light Ind. Press, Beijing, 2007).
E. Meaurio, I. Martinez de Arenaza, E. Lizundia, and J. R. Sarasua, Macromolecules 42, 5717 (2009).
S. Nagarajan and E. B. Gowd, Macromolecules 48, 5367(2015).
B. Zhu, Y. He, N. Yoshie, N. Asakawa, and Y. Inoue, Macromolecules 37, 3257 (2004).
L. H. Mosquera, G. Moraga, and N. Martínez-Navarrete, Food Res. Int. 47, 201 (2012).
J. He, Y. Ren, C. Chen, J. Liu, and H. Liu, J. Food Saf. 37, 1 (2017).
L. H. Chin, Z. M. Ali, and H. Lazan, J. Exp. Bot. 50, 767 (1999).
M. M. Barth, E. L. Kerbel, A. K. Perry, and S. J. Schmidt, J. Food Sci. 58, 140 (1993).
N. R. Sahoo, L. M. Bal, U. S. Pal, and D. Sahoo, Food Packag. Shelf Life 5, 56 (2015).
T. Sangudom, C. Wongs-Aree, V. Srilaong, S. Kanlayanarat, T. Wasusri, S. Noichinda, and W. Markumlai, Int. Food Res. J. 21, 583 (2014).
L. Helyes, Z. Pek, and A. Lugasi, Hortscience 41, 1400 (2006).
H. E. Tahir, Z. Xiaobo, S. Jiyong, G. K. Mahunu, and A. A. Mariod, J. Food Biochem. 42, 1 (2018).
Funding
The authors thank the Science and Technology Fund Project for Colleges and Universities of Inner Mongolia Autonomous Region (NJYT-19-B12), National Natural Science Foundation of China (no. 21564012), Introduction Research Fund Project of Inner Mongolia Agriculture University for High-level talent (NDYB201729), Program Funded by University for Young Scientific and Technological Backbone (2017XQG-4) and Youth Fund of the National Natural Science Fund Project (21805142).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The authors declare that they have no conflict of interest.
Supplementary Information
Rights and permissions
About this article
Cite this article
Xueyan Yun, Li, X., Eerdunbayaer et al. Controllable Poly(L-lactic acid) Soft Film with Respirability and Its Effect on Strawberry Preservation. Polym. Sci. Ser. A 63, 77–90 (2021). https://doi.org/10.1134/S0965545X21020139
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0965545X21020139