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Geddes(1958)认为,有些指标可用来评定粮食的“商品状况”,并预测其储藏性能。霉菌量和生活力是较好的早期劣变指标。脂肪酸度和非还原糖含量可用来鉴定已发生的实际劣变程度。总之,粮食的高生活力和发芽率可能是粮食健全度最好、最有价值的标志,对种子粮和发芽用粮尤其是这样。有些生化指标可用来估计原粮及磨制的加工粮在进一步加工成食品或饲料中的用处。过去没有,看来将来也不可能找到一种“全能”指标,因为每一个指标都在一定参数内变动,这些参数在某些应用方面比在其它方面具有更大的重要意义。生物学和生物化学试验都可用来测定储藏期间粮食的变化,这些生物学和生物化学试验对品质调配也都是需要的。粮食的干燥储存仍然是防止储粮发生有害变化的最好、最简便的办法。
Geddes (1958) argues that some indicators can be used to assess the “commodity status” of food and to predict its storage performance. Mold volume and viability are good indicators of early deterioration. Fatty acidity and non-reducing sugar content can be used to identify the actual degree of deterioration that has occurred. In summary, the high viability and germination rate of food may be the best and most valuable indicator of food security, especially for seed and germinating foodstuffs. Some biochemical indicators can be used to estimate the usefulness of raw and ground processed grains for further processing into food or feed. In the past, it seems unlikely that an “all-encompassing” indicator will be found in the future as each of the indicators changes within a certain parameter that is of greater importance in some applications than in others. Both biological and biochemical tests can be used to determine food changes during storage, and these biological and biochemical tests are also required for quality adjustments. Dry storage of food remains the best and easiest way to prevent harmful changes in stored grain.