Using biodegradable material derived from renewable resources as petroleum-based plastics replacement is a promising way towards sustainable development.However,the insufficient mechanical properties and complex manuf...Using biodegradable material derived from renewable resources as petroleum-based plastics replacement is a promising way towards sustainable development.However,the insufficient mechanical properties and complex manufacturing process of bioplastics still need to be improved for high-quality food packages.Herein,we report a top-down strategy to transform natural wood into a clear wood packaging film through scalable delignification and polyvinyl alcohol(PVA)infiltration.The wood packaging film demonstrates a laminated structure with completely collapsed cell walls and PVA intertwined together after energy-saving air drying,resulting in high light transmittance with low haze,good mechanical performance,and high barrier performance for oxygen and water vapor.Molecular dynamics simulations reveal the underlying fracture mechanism between cellulose and PVA,which effectively enhances the Young’s modulus and strength of the wood packaging film.These findings contribute to the development of biodegradable and strong packaging materials,as well as other food-related applications,using sustainable wood.展开更多
Phyllanthi Fructus is a highly unique medicine and food homologous item,which exhibits distinctive flavor,notable nutritional value,and abundant pharmacological activity.It has enormous potential in the creation of he...Phyllanthi Fructus is a highly unique medicine and food homologous item,which exhibits distinctive flavor,notable nutritional value,and abundant pharmacological activity.It has enormous potential in the creation of health products and pharmaceuticals.However,due to the unique laws of quality formation and transfer of Phyllanthi Fructus,its appearance,shape,chemical compositions,nutrients,and sensory flavors are frequently greatly influenced by botanical resources,the processing and storage conditions.As a result,the current quality evaluation model is difficult to meet the needs of Phyllanthi Fructus as a medicine and food homologous item in the development of diversified products.This paper constructs the hierarchical utilization mode of Phyllanthi Fructus based on its unique quality formation and transmission laws,explores the quality evaluation model for food-oriented use and medicinal-oriented use,respectively,and systematically describes the quality evaluation idea under diversified application scenarios.This paper aims to serve as a reference for the construction of a quality evaluation model suitable for the medicine and food homologous item of Phyllanthi Fructus.展开更多
基金the support of the National Natural Science Foundation of China(No.32371790)the Fundamental Research Funds for the Central Universities(Nos.2572024AW61 and 2572023CT07)+4 种基金the National Key R&D Program of China(No.2023YFD2201404)China Postdoctoral Science Foundation(No.2020M681067)Special Funding Project of Postdoctoral in Heilongjiang Province(No.LBH-TZ2001)the National Natural Science Foundation of China(No.12302143)the National Key Research and Development Program of China(No.2023YFC3806300).
文摘Using biodegradable material derived from renewable resources as petroleum-based plastics replacement is a promising way towards sustainable development.However,the insufficient mechanical properties and complex manufacturing process of bioplastics still need to be improved for high-quality food packages.Herein,we report a top-down strategy to transform natural wood into a clear wood packaging film through scalable delignification and polyvinyl alcohol(PVA)infiltration.The wood packaging film demonstrates a laminated structure with completely collapsed cell walls and PVA intertwined together after energy-saving air drying,resulting in high light transmittance with low haze,good mechanical performance,and high barrier performance for oxygen and water vapor.Molecular dynamics simulations reveal the underlying fracture mechanism between cellulose and PVA,which effectively enhances the Young’s modulus and strength of the wood packaging film.These findings contribute to the development of biodegradable and strong packaging materials,as well as other food-related applications,using sustainable wood.
基金supported by grants from the National Natural Science Foundation of China(No.81973493)Study and Research Joint Laboratory Project of Chengdu University of TCM&Sanajon Pharmaceutical Group(No.2019-YF04-00086-JH)Sichuan Science and Technology Program(No.2021YFN0100)。
文摘Phyllanthi Fructus is a highly unique medicine and food homologous item,which exhibits distinctive flavor,notable nutritional value,and abundant pharmacological activity.It has enormous potential in the creation of health products and pharmaceuticals.However,due to the unique laws of quality formation and transfer of Phyllanthi Fructus,its appearance,shape,chemical compositions,nutrients,and sensory flavors are frequently greatly influenced by botanical resources,the processing and storage conditions.As a result,the current quality evaluation model is difficult to meet the needs of Phyllanthi Fructus as a medicine and food homologous item in the development of diversified products.This paper constructs the hierarchical utilization mode of Phyllanthi Fructus based on its unique quality formation and transmission laws,explores the quality evaluation model for food-oriented use and medicinal-oriented use,respectively,and systematically describes the quality evaluation idea under diversified application scenarios.This paper aims to serve as a reference for the construction of a quality evaluation model suitable for the medicine and food homologous item of Phyllanthi Fructus.
