Kazi N S Rafi, M G Aziz, Mohammad Amirul Islam, Sarif Istiak Akash, Md Jakariya, Moupia Rahman
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引用次数: 0
摘要
生物强化锌（Zn）是消除锌缺乏症的重要手段，特别是在发展中国家。目前已有研究评估了锌处理对粮食中锌生物可及性的影响，并进行了萌发试验。对BARI Gom 28 （Triticum aestivum）、BARI Chola 5 （Cicer arietinum）和BARI Mung 6 （Vigna radiata）芽苗菜的可食用（种子）和不可食用（根）部分进行了锌的生物可及性分析。在锌含量为50 ppm时，BARI Chola 5种子中锌含量最高（44.50 ppm），而在对照处理下，BARI Mung 6根中锌含量最低（0.45 ppm）。25 ppm Zn处理下，BARI Chola 5种子Zn生物可及性最高（90%），BARI Gom 28芽根Zn生物可及性最低（62%）。通过优化分数因子设计分析，在50 ppm Zn处理下，BARI Chola 5种子对Zn的响应最大，复合满意率为91.06%。发芽率、芽鲜、干重、芽长、种子活力和生物产量在50 ppm Zn处理下表现较好。因此，通过水培方法对粮食进行生物强化，采用对照、25 ppm和50 ppm锌处理对锌的生物可及性产生了不同的影响。
Assessment of the bioaccessibility of zinc in the selected biofortified food grains.
Biofortification of zinc (Zn) is a great means of eradicating Zn deficiency, essentially in developing countries. Current study has evaluated the influence of Zn treatment on bioaccessibility of Zn in food grains along with germination assays. Edible (seed) and inedible (root) portions of BARI Gom 28 (Triticum aestivum), BARI Chola 5 (Cicer arietinum) and BARI Mung 6 (Vigna radiata) sprouts were analyzed for Zn bioaccessibility. The highest Zn (44.50 ppm) was extracted from the seed of BARI Chola 5 at 50 ppm Zn and the lowest (0.45 ppm) was extracted from the root of BARI Mung 6 at control treatment. The highest Zn bioaccessibility percentage (90%) was observed at the seed of BARI Chola 5 and the lowest percentage (62%) at the root of BARI Gom 28 sprouts at 25 ppm Zn treatment. After optimizing fractional factorial design analysis, maximum Zn response is observed in the seed of BARI Chola 5 at 50 ppm Zn treatment with 91.06% composite desirability. Germination percentage, fresh and dried weight of sprouts, sprout length, seed vigor and biological yield showed better results at 50 ppm Zn. Thus, biofortification of food grains through hydroponics approach using control, 25 ppm and 50 ppm Zn treatments produced contrasting effects on Zn bioaccessibility.
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