From Agri-Food Wastes to Polyhydroxyalkanoates through a Sustainable Process

被引:8
|
作者
Verdini, Federico [1 ]
Tabasso, Silvia [1 ]
Mariatti, Francesco [1 ]
Bosco, Francesca [2 ]
Mollea, Chiara [2 ]
Gaudino, Emanuela Calcio [1 ]
Cirio, Alessio [1 ]
Cravotto, Giancarlo [1 ]
机构
[1] Univ Turin, Dipartimento Sci & Tecnol Farmaco, Via P Giuria 9, I-10125 Turin, Italy
[2] Politecn Torino, DISAT, Dept Appl Sci & Technol, Cso Duca Degli Abruzzi 24, I-10129 Turin, Italy
来源
FERMENTATION-BASEL | 2022年 / 8卷 / 10期
关键词
corn straw; mixed microbial cell culture (MMC); microwaves; biopolymers; lignocellulosic biomass; WHEAT-STRAW; BIOCONVERSION; PRETREATMENT; DEGRADATION; STRATEGIES; CONVERSION; BACTERIA; FRACTION; BIOMASS; CARBON;
D O I
10.3390/fermentation8100556
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The biologically-derived polymers polyhydroxyalkanoates (PHAs) are biodegradable and can be considered a valuable alternative to conventional fossil-based plastics. However, upstream and downstream processes for PHA production are characterized by high energy and chemical consumption and are not economically competitive with petroleum-based polymers. Aiming to improve both the environmental and economical sustainability of PHAs production, in this work, corn straw was used as raw material to obtain a mixture of fermentable sugars after microwave-assisted flash hydrolysis (2 min, 0.01 g/L, 50.7% yield). A mixed microbial culture enriched from dairy industry waste was used for fermentation in a shake flask, allowing us to achieve good poly(hydroxy-butyrate-co-hydroxy-valerate) yields (41.4%, after 72 h of fermentation). A scale-up in a stirred tank bioreactor (3 L) gave higher yields (76.3%, after 96 h), allowing in both cases to achieve a concentration of 0.42 g/L in the fermentation medium. The possibility of producing PHAs from agricultural waste using a mixed microbial culture from the food industry with enabling technologies could make the production of biopolymers more competitive.
引用
收藏
页数:18
相关论文
共 50 条
  • [1] Current Challenges in the Sustainable Valorisation of Agri-Food Wastes: A Review
    Berenguer, Cristina V.
    Andrade, Carolina
    Pereira, Jorge A. M.
    Perestrelo, Rosa
    Camara, Jose S.
    [J]. PROCESSES, 2023, 11 (01)
  • [2] Isolation of Extracellular Vesicles from Agri-Food Wastes: A Novel Perspective in the Valorization of Agri-Food Wastes and By-Products
    Latella, Raffaella
    Calzoni, Eleonora
    Urbanelli, Lorena
    Cerrotti, Giada
    Porcellati, Serena
    Emiliani, Carla
    Buratta, Sandra
    Tancini, Brunella
    [J]. FOODS, 2024, 13 (10)
  • [3] Sustainable Agriculture and Agri-Food
    Lisciani, Silvia
    [J]. SUSTAINABILITY, 2024, 16 (15)
  • [4] Bioactive Phenolic Compounds From Agri-Food Wastes: An Update on Green and Sustainable Extraction Methodologies
    Panzella, Lucia
    Moccia, Federica
    Nasti, Rita
    Marzorati, Stefania
    Verotta, Luisella
    Napolitano, Alessandra
    [J]. FRONTIERS IN NUTRITION, 2020, 7
  • [5] Externalities and sustainable agri-food system
    Inegbedion, Henry
    [J]. Discover Food, 4 (01):
  • [6] Circular agri-food systems: A governance perspective for the analysis of sustainable agri-food value chains
    Miranda, Bruno Varella
    Monteiro, Guilherme Fowler A.
    Rodrigues, Vinicius Picanco
    [J]. TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE, 2021, 170
  • [7] Agroecology and Alternative Agri-Food Movements in the United States: Toward a Sustainable Agri-Food System
    Fernandez, Margarita
    Goodall, Katherine
    Olson, Meryl
    Mendez, V. Ernesto
    [J]. AGROECOLOGY AND SUSTAINABLE FOOD SYSTEMS, 2013, 37 (01) : 115 - 126
  • [8] Achieving Sustainable Performance in Agri-food Supply Chains Through Digitalization
    Kontopanou, Maria
    Tsoulfas, Giannis T.
    [J]. DIGITAL ECONOMY AND THE GREEN REVOLUTION, ICBE 2022, 2023, : 267 - 276
  • [9] Bioactives from Agri-Food Wastes: Present Insights and Future Challenges
    Ben-Othman, Sana
    Joudu, Ivi
    Bhat, Rajeev
    [J]. MOLECULES, 2020, 25 (03):
  • [10] Anaerobic Digestion of Agri-Food Wastes for Generating Biofuels
    Chunjie Gong
    Ankit Singh
    Pranjali Singh
    Archana Singh
    [J]. Indian Journal of Microbiology, 2021, 61 : 427 - 440