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This experiment used scanning electron microscopy, X-ray diffraction, differential calorimetry scanner and in vitro digestion method to study the condensed structure, particle size, crystal properties, thermal properties and digestion properties, starch hydrolysis rate, and hydrolysis kinetics of micronized rice starch. Changes in chemical constants and glycemic index were analyzed. Experimental results show that dry ball […]

Study the relationship between rice fatty acid value and rice freshness, and analyze the effect of rice fatty acid value on the antioxidant performance of beer. At the same time, the effect of storage time on the fatty acid value of rice was investigated, and its change mechanism was discussed. The results show that the […]

Objective To establish an efficient and sensitive detection method for inorganic arsenic using new ion exchange column technology and detect the arsenic content in rice matrix. The method is based on a new ion exchange column. The pretreatment method, liquid phase separation and mass spectrometry measurement conditions for the analysis of inorganic arsenic in rice […]

Chahayang rice is a specialty brand of Heilongjiang rice. In order to protect the Chahayang rice brand, we can quickly identify the origin of Chahayang rice. By constructing rice experimental fields in different regions and varieties, the near-infrared spectrum of the rice in the experimental fields was scanned at full wavelength during the harvest period […]

Conventional PEP (PE/PA/PE) materials and high-barrier EVOH (PA/EVOH/PE) packaging materials were used to carry out vacuum packaging and non-vacuum packaging of fresh rice (Changyou No. 5 Japonica rice), and the low temperature and constant humidity (temperature: 15 ¡æ, relative humidity 50%), the dynamic changes of rice moisture content, fatty acid value, reducing sugar content, number […]

Utilizing two partially complementary thymine (T base)-rich single-stranded nucleic acids, combined with graphene oxide and the nucleic acid dye SYBR Green¢ñ, using simultaneous fluorescence analysis method, a highly sensitive and highly selective mercury ion (Hg2+ ) Two-color fluorescence quantitative detection method. Under optimized conditions, when the Hg2+ concentration is between 5¡Á10-10~500¡Á10-10 mol/L, the total fluorescence […]

In order to reasonably determine the saccharification process parameters of extrusion-cooked rice beer accessories, a secondary orthogonal rotation combination test was used to study the influence of extrusion-cooked rice saccharification process parameters on the main wort inspection indicators. The research results show that when the saccharification time at 65¡ãC is 60min, the saccharification time at […]

Rice samples were irradiated with electron beams at doses of 0, 1, 2, 3, 4, 5, and 6 kGy to examine their effects on rice quality. The results show that different doses of electron beam irradiation have no significant effect on the moisture content and soaking water absorption rate of rice (P>0.05); with the increase […]

Taking peach blossom fragrant rice and Jinjian fragrant rice as objects, the distribution characteristics of bacteria and molds on rice production lines in summer and autumn were studied to determine the key points of microbial control during rice processing. The results showed that during the processing from raw rice to finished rice, the number of […]

simple, rapid and accurate method for the simultaneous determination of melamine and its analogues cyanuric acid, melamine monoamide and melamine diamide in rice protein powder was established. After ultrasonic extraction of the sample with diethylamine-water-acetonitrile (1:4:5, V/V) for 30 minutes, the extract was dried with nitrogen at 70¡ãC, derivatized by methylsilanization in pyridine medium, and […]