Research Publications (Food Safety)

Sour rot, caused by Geotrichum citriaurantii (G. citri-aurantii.), is one of the most serious grapevine secondary infection diseases in China. We have determined that pterostilbene, the most important phytoalexin, effectively inhibits the activity of G. citri‐aurantii. To study the synthesis mechanism of pterostilbene against G. citri‐aurantii in grape, we initially detected the content of pterostilbene present in grapes infected by G. citri‐aurantii with the use of UHPLC‐QQQ‐MS2.

We evaluated the characteristic odor substances in Asian carp meat, which are prevalent in the Great Lakes, to provide a foundation for resource utilization and removing its fishy smell. Three Mono Trap RCC18 adsorbents were used to extract samples. Volatile components were analyzed by gas phase‐olfaction‐mass spectrometry. The main odor‐active substances were identified by aroma extraction dilution analysis. The overall odor profile was analyzed by electronic nose.

Chia seeds (Salvia hispanica L.) are rich in omega fatty acids. The aim was to evaluate the effect of chia intake on acute dyslipidemia, on acute steatohepatitis, and on mixed damage in non‐obese rats. Chia seeds intake for 4 weeks partially or totally prevented steatohepatitis, and reduced dyslipidemia in groups. The hypolipidemic and hepatoprotective effects of chia may be correlated to its high content of α‐linolenic acid (omega‐3), fiber, protein, and phenolic compounds.

Purple rice extract (PRE) retarded the testosterone‐induced rat benign prostatic hyperplasia (BPH) and suppressed the growth of human prostate cancer (LNCaP). These effects might cause by the reduction of androgen receptor (AR) activation. Therefore, the genes responsible for AR‐DHT complex were down‐regulated such as prostate specific antigen (PSA).

The oligosaccharide Hep‐2 from cultured mycelium of Hericium erinaceus was isolated by the method of water extraction, alcohol precipitation, and column chromatography. Hep‐2 consists of galactose, and glucose with 1,080 Da molecular weight and it is an oligosaccharide mixture of 2–7 sugars by LC‐MSn and includes three types of sugar residues with no branches by methylation methods. Hep‐2 possess good antioxidant activity in vivo.

Diarrheagenic Escherichia coli O157 is an important reason for largest food borne inflectional outbreaks. E. coli O157 invades into the food chain through contaminated irrigation water and soil causing infectious diseases to humans. In our previous study, we have evaluated the persistence of E. coli O157 through plate count methods. However, conventional cultural procedures are less sensitive to discriminate the pathogenic strain and are time consuming.

A total of 40, male Wistar Albino, 2–3‐months‐old rats were used and divided into four groups. Control group received the vehicle alone, diosmin group received 100 mg/kg.bw diosmin, the cadmium group received 200 ppm cadmium, cadmium plus diosmin group received 200 ppm cadmium, and 100 mg/kg.bw diosmin for 30 days.