Journals
  Publication Years
  Keywords
Search within results Open Search
Please wait a minute...
For Selected: Toggle Thumbnails
An economic and viable approach to improve wheat quality in Qinghai–Tibetan Plateau, China
WANG Yu-jiao, TAO Zhi-qiang, WANG De-mei, WANG Yan-jie, YANG Yu-shuang, ZHAO Guang-cai, SHI Shu-bing, CHANG Xu-hong
2022, 21 (8): 2227-2240.   DOI: 10.1016/S2095-3119(21)63677-8
Abstract156)      PDF in ScienceDirect      

Wheat flour products are the main dietary component of the Qinghai–Tibetan Plateau (QTP) population in China.  However, the high altitude restricts the local wheat quality and quantity, and the applied nitrogen rate is higher than the optimal rate for wheat planting.  In this study, we considered whether reducing the amount of nitrogen fertilizer and introducing the superior varieties from the North China Plain (NCP) are viable ways to increase the wheat quality and quantity in the QTP.  Three and four winter wheat cultivars from QTP and NCP, respectively, were planted in Lhasa at an altitude of 3 647 m with reduced topdressing nitrogen application at the jointing stage.  The wheat from NCP exhibited higher grain hardness index and test weight, and better flour and dough quality.  Reducing the topdressing nitrogen fertilizer from 135 to 75 kg N ha−1 at the jointing stage (with the same basal fertilization of 105 kg N ha−1) did not significantly (P<0.05) affect the grain yield, grain quality, flour quality or dough quality in any of the cultivars.  In summary, introducing high-quality winter wheat varieties from the NCP to the Lhasa plateau is a viable way to enhance the wheat supply and quality in the QTP.  Reducing a certain amount of the nitrogen fertilizer is an economic and feasible approach for the QTP region.

Reference | Related Articles | Metrics
Multi-mycotoxin exposure and risk assessments for Chinese consumption of nuts and dried fruits
WANG Yu-jiao, NIE Ji-yun, YAN Zhen, LI Zhi-xia, CHENG Yang, Saqib Farooq
2018, 17 (07): 1676-1690.   DOI: 10.1016/S2095-3119(18)61966-5
Abstract475)      PDF in ScienceDirect      
In this study, 15 mycotoxins were detected in 233 nut and dried fruit samples from China.  The 15 mycotoxins included aflatoxins (AFs: AFB1, AFB2, AFG1 and AFG2), trichothecene toxins (TCs: T-2, ZEA, ENA, ENA1, ENB, ENB1 and BEA), Alternaria toxins (ATs: TEN, AOH and AME) and ochratoxin A (OTA).  The mycotoxins were detected in 47.6% of the samples and all 15 of the mycotoxins were found.  Two samples were positive for AFB1 and exceeded the maximum tolerable levels allowed in China.  The contamination levels of the mycotoxins found in nuts, dried jujubes, raisins, dried figs and dried longans were in the ranges of 0.1–462.7, 0.2–247.3, 0.8–10.1, 0.2–384.1 and 0.1–89.2 μg kg–1, respectively.  Dried figs (80.0%) had the highest incidence of mycotoxins, followed by dried longans (60.0%), dried jujubes (57.1%), nuts (43.6%) and raisins (26.7%).  The estimated daily intake (EDI) values of each individual mycotoxin and all of the mycotoxins collectively were calculated by both the deterministic approach (DA) and the probability approach (PA).  For risk characterization, dietary exposure to TCs, ATs and OTA through consumption of nuts and dried fruits according to both approaches, showed no health risk to Chinese adults by exposure to either individual mycotoxins or in combination.  To the best of our knowledge, this is the first work in which risk assessment of multimycotoxins is performed, specifically including the emerging ENNs and BEA, in nuts and dried fruits of China. 
 
Reference | Related Articles | Metrics