The grain bureau issued a report on the rapeseed harvest quality in six provinces in 2011

In order to grasp the quality of rapeseed newly harvested in 2011, the National Grain Administration organized for the first time the main producing province. According to the unified requirements, 185 samples of rapeseed were collected at the first time after harvest and quality inspections were conducted. Samples are all village-level mixed samples, involving 76 major producing counties (districts) in 6 provinces and 34 cities. The number of samples in each place is distributed according to the weight of production. In general, the quality of rapeseed newly harvested in 2011 was good, with 61% of the standards meeting the national (third-class) requirements above the national standard, and the proportion of erucic acid content ≤ 3.0% was 24%.

The results of all 6 provinces were: the average oil content was 38.3%, and the variation range was 31.0% to 43.4%. The first-to-five grades were 3%, 11%, 47%, 30%, and 8%, respectively, and the average grade (above third grade) accounted for 61%, while the external grade was 1%. The average value of unprepared grains is 1.0%, the maximum value is 17.4%, the proportion of the standard requirements (≤15.0%) is 99%, the average value of the thermal damage grains is 0.2%, the maximum value is 2.4%, and the standard requirement (≤2.0%) is 84%; buds average 0.3%, the maximum is 1.6%, all meet the standard requirements; mold grain average 0.5%, the maximum is 6.1%, meet the standard requirements (≤ 2.0%) ratio of 96%. About 2% of the samples contained aflatoxin B1 in excess (>5 μg/kg). Fatty acid composition test results showed that the proportion of low erucic rapeseed in all samples was 24%.

The detailed quality status of each province is as follows:

(I) 49 samples were collected in Hubei, involving 8 cities and 17 counties (districts). The average oil content was 38.5%, which varied by 34.0% to 42.8%. The first-to-five grades were 2%, 6%, 70%, 16%, and 6%, respectively, and 78% were above average. The average value of unprepared grains is 1.5%, and the maximum value is 15.2%. The ratio of the standard requirements is 98%. The average value of the thermal damage grains is 0.3% and the maximum value is 2.0%. All of them meet the standard requirements. The average value of the sprout grains is 0.2%. It is 0.8%; the average number of mold pellets is 0.4%, and the maximum value is 2.6%, which is 98% according to the standards. One sample contained aflatoxin B1 in excess. The ratio of canola to rapeseed in all samples was 18%.

(ii) 37 samples were collected in Sichuan, covering 7 cities and 16 counties (districts). The average oil content was 39.5%, varying from 36.3% to 42.5%. The first-to-fourth ratios were 5%, 27%, 57%, and 11%, respectively, and those with a medium-level or higher accounted for 89%. The average value of unprepared grains is 1.7% and the maximum value is 17.4%. The proportion of the standard requirements is 97%. The average value of the thermal damage grains is 0.2% and the maximum value is 2.4%. The percentage of the standard that meets the standards is 97%. The average of the sprout grains is 0.4%. The value was 1.2%; the average number of mold pellets was 0.5%, and the maximum value was 2.8%. The percentage required to meet the standards was 95%. The ratio of canola to rapeseed in all samples was 5%.

(3) 30 samples were collected in Hunan, involving 3 cities and 17 counties (districts). The average oil content was 38.3%, and the variation ranged from 34.1% to 41.0%. The proportions of second to fifth grades were 10%, 53%, 27%, and 10% respectively, and 63% or more were middle grades. There was no first grade product. The average value of unprepared grains was 1.0% and the maximum value was 7.0%; the average value of thermal damage grains was 0.2%, and the maximum value was 0.8%; the average value of sprout grains was 0.4%, the maximum value was 1.6%; the average grain size was 0.5%, and the maximum value was 3.7%. The rate of compliance with the standard is 97%. The ratio of canola to rapeseed in all samples was 27%.

(4) 29 samples were collected in Anhui Province involving 5 cities and 8 counties (districts). The average oil content was 37.2%, ranging from 33.7% to 39.2%. The proportions of third to fifth grades were 35%, 52%, and 10%, respectively, and those with medium or higher grades accounted for 35%. Foreign products accounted for 3%. There were no first-class or second-class products. The average value of unmilled grains was 0.3% and the maximum value was 3.2%. No heat-damaged grains were detected. The average value of germinated grains was 0.1% and the maximum value was 0.8%. The average grain size was 0.3% and the maximum value was 1.4%. The ratio of canola to rapeseed in all samples was 34%.

(e) 25 samples were collected in Jiangsu, involving 7 municipalities and 12 counties (districts). The average oil content was 37.6%, varying by 34.1% to 42.6%. The first-to-five-class ratios were 4%, 4%, 28%, 52%, and 12%, respectively, and those of medium-level or higher were 36%. Immature grain average value of 0.2%, the maximum value of 1.7%, in line with the standard requirements of the proportion of 97%; thermal damage grain maximum 0.3%; germination grain average 0.2%, maximum 1.3%; mold grain average 1.1%, maximum The value of 6.1% was in line with the standard requirement (≤2.0%) and the proportion was 88%. The samples in Nantong had high mold grain. The ratio of canola to rapeseed in all samples was 57%.

(6) Jiangxi collected 15 samples, involving 4 cities and 6 counties (districts). The average oil content was 38.6%, ranging from 36.4% to 40.7%. The proportions of second to fourth grades were 20%, 40%, and 40%, respectively, and those of medium or higher grades accounted for 60%. There were no first-class and fifth-grade products. The average value of unmilled grains was 1.0%, and the maximum value was 6.6%. The average value of thermal damage grains was 0.3% and the maximum value was 1.6%. The average value of germinated grains was 0.5% and the maximum value was 1.3%. The average grain size was 0.3% and the maximum value was 1.6%. . Two samples had aflatoxin B1 content exceeding the standard. The ratio of canola to rapeseed in all samples was 13%.