Novel heating technologies to improve fermentation efficiency and quality in wheat products:A short review

Identifying novel processing methods is an important research direction in the field of food engineering.Fermented flour products have been popular all over the world for a long time because of their unique flavor and texture.Whether for yeast or sourdough,the accurate temperature control is essential for the fermentation process.Some novel heating methods have shown potential in the processing of fermented flour products.Microwave heating(MWH),radiofrequency heating(RFH),and ohmic heating(OH)are undoubtedly the most promising heating methods.MWH affects the fermentation time of the dough by affecting the water molecules in the dough,and may also improve the fermentation quality of wholewheat flour products.RFH contributes to the control of harmful substances in the fermentation process and has shown potential for the production of sourdough bread.OH has superiority in accurately controlling the temperature,enzymes,microorganisms,etc.in the fermentation process,and it is beneficial to shortening the fermentation time.Researchers have applied these heating methods with different properties to different uses.This article summarized the application and potential of these three novel heating methods in the production of fermented flour products.The application scenarios and parameter settings of novel heating technologies in dough fermentation process need further research.It is reasonable to believe that novel heating methods can become an important tool to improve the efficiency of dough fermentation and the quality of fermented dough in the future.

A novel coating technology for fast sealing of air leakage in underground coal mines

Air leakage in underground coal mines presents a serious hazard for coal production and the safety of miners.Coating technology is commonly used as an efficient means for preventing air leakage.To address existing problems with high dust concentrations in large operations involving complex processes and the high cost of traditional coating technology,a novel coating technology that ensures intrinsic safety by utilizing water pressure and wind pressure was developed.This new coating technology was designed to suction and spray,and the technical parameters of its spray performance was also studied.The experimental tests and evaluation indicated the optimum working range is 0.3–0.7 MPa of wind pressure,1.2–10.2 L/min of water quantity,and 1.0–3.5 m of spraying distance.Moreover,this novel coating technology was tested in the Dashuitou Coal Mine in Gansu Province of China.Compared with conventional counterparts,the proposed new technology is safe,efficient,and convenient to operate.During spraying,dust concentrations were kept at less than 10 mg/m3,and the average rebound ratio resilient rate of solid materials was below 13%.After spraying,the average leakage every 100 m was 4 m3/min,and the oxygen volume fraction in the adjacent goaf was approximately 4%,demonstrating excellent air leakage prevention.

Application and implications of polyethylene glycol-fusion as a novel technology to repair injured spinal cords

Conventional vs. polyethylene glycol （PEG）-fusion tech- nologies to repair severed spinal axons： Most spinal cord injuries （SCIs） involve cutor crush-severance of spinal tract axons in the central nervous system （CNS）. Clinical out- comes after CNS axonal severance is very poor because proximal segments of CNS axons lack a suitable environment for outgrowth （Kakulas, 1999; Fitch and Silver, 2008; Rowland et al., 2008; Kwon et al., 2010） and therefore do not naturally regenerate （Ramon y Caial, 1928）. Current strategies to try to increase behavioral recovery after SCI are focused on en- hancing the environment for axonal outgrowth.

Novel Technology and Products: Fluidized Bed Incineration and Energy Recovery for Waste Disposal——Developed by the Institute for Thermal Power Engineering, Zhejiang University

The waste referred to includes solid waste and sludge. Solid waste is mainly from urban garbage and industrial waste. Sludge is from water treatment factories, paper mills, chemical factories, pharmaceutical factories, rivers and lakes. The waste and sludge are very harmful to water organisms, human health and drinking water, and directly affect the environment. Sludge and waste also occupy large areas of land. There are several methods to treat waste and sludge, such as burial, chemical treatment and incineration. Incineration is more effective than the

Progress in Research of Gas Hydrate

It is of great significance to study gas hydrate because of following reasons. （1） Most organic carbon in the earth reserves in the form of natural gas hydrate, which is considered as a potential energy resource for the survival of human being in the future. （2） A series of novel technologies are based on gas hydrate. （3） Gas hydrate may lead to many hazards including plugging of oil/gas pipelines, accelerating global warming up, etc. In this paper, the latest progresses in exploration and exploitation of natural gas hydrate, the development of hydrate-based technologies including gas separation, gas storage, CO2 sequestration via forming hydrate, as well as the prevention of hydrate hazards are reviewed. Additionally, the progresses in the fundamental study of gas hydrate, including the thermodynamics and kinetics are also reviewed. A prospect to the future of gas hydrate research and application is given.

Development trend and prospect of solid phase extraction technology

Solid phase extraction is widely used in sample pretreatment,concentration and analysis processes due to high selectivity and suitability for low concentration sample system.In this review,we systematically summarized and discussed the development trends of solid phase extraction by bibliometrics method.By analyzing papers output scale,the research and development direction of solid phase extraction technology is prospected.We also give an overview on current strategies of novel solid phase extraction from the separation medium and separation technology.The paper aims to describe the global research profile and the development trends of solid phase extraction,to help researchers to accurately grasp the research trend and to provide support for scientific research institutions to formulate scientific policies and strategic plans.Furthermore,the prospect of the development and application of solid phase extraction is also discussed.

APPLYING NOVEL ANALYTICAL TECHNOLOGIES TO FACE NATURAL PRODUCTS CHALLENGES

Herbal medicines have been used since ancient times for thetreatment of many diseases and illnesses.Modern chromatographic and spectroscopic techniques have had a tremendous impact on the analysis of herbal medicine to facilitate research as well as enhancement of safety and efficacy of commercial products.Today,with the

Advances in strategies to assure the microbial safety of food-associated ice

Ice has been extensively employed as a general coolant or ingredient in the food industry.However,evident indicates that food-associated ice can be easily contaminated by pathogenic bacteria,such as Escherichia coli,Staphylococcus aureus,and Salmonella spp.,among others.The contamination sources are attributed to the use of unhygienic water,improper handling,and poor hygiene conditions of ice-making machines.The contaminated ice might be a vesicle for the transmission of pathogens to food and human,posing potential risks to public health.This review overviewed the microbial contamination of food-associated ice,including the microbial contamination levels and the main microbial contaminants.In addition,a systematical introduction was constructed on the recent advances and applications of state-of-the-art methods to manufacture safe ices,illustrating ozone,electrolyzed water,cold plasma,essential oils,and ultraviolet light-emitting diode irradiation.The validities and limitations of ice treated by these techniques on the food quality were then discussed in detail.Various studies were also organized to demonstrate the potential of the mentioned treated ice,for ensuring the microbial safety and control quality deterioration during the storage of aquatic products.Finally,the direction for future study was given.