Publications by authors named "Gaoji Yang"

Article Synopsis
  • Whey protein is a nutritious animal protein, but its usefulness in food systems is limited by its sensitivity to environmental factors.
  • The study explores using radio frequency heating to couple whey protein with gum Arabic, significantly improving their functional properties compared to traditional water bath heating.
  • Results showed that the RF heating increased the glycosylation degree, enhancing emulsifying, foaming, and antioxidant qualities of the protein-gum conjugates.
View Article and Find Full Text PDF

Structural modification/unfolding of starch molecules can be improved by radio frequency (RF) treatment. This necessitates a better understanding of its action mechanism through rapid heating and dipolar/ionic molecular vibration effects. Native maize starch (NS) was subjected to RF heating in a NaCl solution to five target temperatures, and its effect on structural modifications was evaluated.

View Article and Find Full Text PDF
Article Synopsis
  • * The review discusses various PF techniques like ultrasound, microwave, and irradiation, evaluating their effectiveness, applications, and limitations on microbial decontamination and the nutritional quality of germinating seeds.
  • * It highlights the potential of PFs to improve seed germination, enhance bioactive compounds, and boost antioxidant capacity, while also addressing challenges and future directions for safer processing of sprouted seeds.
View Article and Find Full Text PDF

Radio frequency (RF) heating as an emerging technology is widely used to improve cereal-based food quality. To further investigate effects of RF treatment on buckwheat quality, structures and physicochemical properties of protein and starch in buckwheat were evaluated under various temperatures (80, 90, and 100 °C) and holding times (0, 5, and 10 min). Results showed that protein-starch complexes were reaggregated with the increases of RF heating temperature and time, as well as the values of R, crystallinity, random coil, and α-helix significantly decreased, and the values of β-sheet obviously increased.

View Article and Find Full Text PDF

Sprouts may be contaminated with different pathogenic and spoilage microorganisms, which lead far too easily to foodborne outbreaks. The elucidations of microbial profiles in germinated brown rice (BR) are important, but the changes in the microbial composition during germination are unknown. This study aimed to investigate the microbiota composition and to monitor the dominant microbial dynamics in BR during germination using both culture-independent and -dependent methods.

View Article and Find Full Text PDF

Buckwheat kernels were susceptible to be contaminated by heat-resistant spores. This study aimed to investigate effects of radio frequency (RF) heating, ultraviolet (UV) light and their combination treatment on the inactivation of B. cereus spores and quality attributes of buckwheat kernels.

View Article and Find Full Text PDF

, an emerging foodborne pathogen that was isolated primarily from powdered infant formula, poses an important issue in food safety due to its high stress tolerance and pathogenicity. The Hpr (encoded by gene) has been shown to regulate carbon metabolism as well as stress response and virulence. However, the functional properties of in have not been investigated.

View Article and Find Full Text PDF
Article Synopsis
  • A study examined the effects of cinnamon essential oil nanoemulsions (CEON) and ε-polylysine (ε-PL) on preserving pork quality and inhibiting bacteria growth during refrigeration and radio frequency cooking.
  • CEON, stabilized with soybean lecithin, effectively reduced Salmonella and total bacterial counts in raw pork during a 12-day refrigerated period, particularly against dominant spoilage bacteria like Photobacterium.
  • The combined treatment of CEON and ε-PL improved pork freshness and showed a potential to enhance texture without negatively affecting the overall quality during cooking, making it a promising method for meat preservation.
View Article and Find Full Text PDF

Alfalfa sprouts have high nutritional values when consumed raw, but are easily contaminated by food pathogens. This study aimed to evaluate effects of essential oil (EO) vapors, RF heating and their combinations on microbial inactivation, germination rate and generated sprouts' quality of alfalfa seeds at moisture contents of 7.52%, 9.

View Article and Find Full Text PDF

This study aimed to investigate the inactivation mechanism of Bacillus cereus spores by slightly acidic electrolyzed water (SAEW). Spore inactivation efficacy of SAEW at different available chlorine concentrations (ACC, 20, 60 and 100 mg/L), as well as spore structures change, coat damage, mutagenesis, and inner membrane (IM) properties were examined. The viability of treated spores with lysozyme addition and spore germination induced by germinant was also examined.

View Article and Find Full Text PDF

Microbial contamination is a persistent problem for grain industry. Many studies have shown that radio frequency (RF) heating can effectively reduce pathogens populations in low moisture foods, but there is a lack on the efficacy to decontaminate natural microbiome. The main objectives of this study were to investigate the effects of different RF heating conditions on natural microbial populations and physicochemical properties of buckwheat.

View Article and Find Full Text PDF

Microbial contamination of sprouts commonly occurs because of the pathogens present on and in the seeds and the optimal conditions for bacteria growth provided during the germination and sprouting processes. This study examined the decontamination effect of slightly acidic electrolyzed water (SAEW), a 'generally recognized as safe' (GRAS) disinfectant, in the production process of alfalfa sprouts. SAEW with various available chlorine concentrations (ACC, 25, 35, 45 mg/L) and different pH levels (5.

View Article and Find Full Text PDF

Scope: Punicalagin (PU)-rich pomegranate peel extract has been shown before to exert protective effects against high fat-induced hepatic damage. The aim of this study is to explore whether and how PU antagonizes hepatic steatosis in Western diet-fed (WD) mice.

Methods And Results: Mice are fed either chow diet, WD (containing 42% fat, 15% protein, and 43% carbohydrates), or WD supplemented with PU (50 mg kg body weight/day) for 13 weeks.

View Article and Find Full Text PDF

spores are concerns for food spoilage and foodborne disease in food industry due to their high resistance to heat and various disinfectants. The aim of this study was to investigate the inactivation of spores by slightly acidic electrolyzed water (SAEW) in comparison to sodium hypochlorite (NaClO) with same available chlorine content (ACC). In this study, the efficacy of SAEW with different concentrations of ACC (40, 60, 80, 100, and 120 mg/L) on the inactivation of spores, and the effect of SAEW combined with mild heat treatment (60°C), was examined in pure culture suspensions.

View Article and Find Full Text PDF

Necrotizing enterocolitis (NEC) is a serious intestinal disease associated with a high mortality (40-60%) in newborn infants. Cronobacter sakazakii is an important factor for NEC. However, studies regarding NEC pathogenesis and therapeutic treatments are still limited.

View Article and Find Full Text PDF