Background: Moringa oleifera plant is popularly known for its rich phytoconstituents and nutritional value and important medicinal values in both traditional and modern systems of medicine. We explored the present stu...Background: Moringa oleifera plant is popularly known for its rich phytoconstituents and nutritional value and important medicinal values in both traditional and modern systems of medicine. We explored the present study for measurements of microelements, amino acid, phenolic content in hydro-al-coholic flower and leaf extracts of Moringa oleifera along with anti-diabetic activity in Streptozotocin (STZ)-induced diabetic male Wistar rats. Methodology: The micronutrients were determined by using atomic absorption spectrophotometer at 285 nm and 422 nm for Calcium (Ca), phosphorus (P), Iron (Fe), and Zinc (Zn), etc. The trace elements were also measured by spectrophotometer. The essential amino acid was determined by using Amino acid analyser. The total phenolic content in hydro-alcoholic extracts (flower and leaf) M. oleifera measured the absorbance at 760 nm by UV spectrophotometer. The screening of anti-diabetic activity HAFE and HALE of Moringa oleifera at two different dose of 100 and 200 mg/kg b.w. for 21 days were performed by determining the changes in biochemical parameters. Result and Discussion: The results revels that the presence of micronutrients, trace elements and amino acids in both flower and leaf of M. oleifera. The hydrolaocholic extracts of HAFE and HALE at 200 mg/kg b.w. showed significant antidiabetic activity compared with standard Glibenclamide. Whereas dose at 100 mg/kg b.w. showed moderate activity. Conclusion: In conclusion, the M. oleifera exhibits more effectiveness against STZ-induced diabetes. The HAFE and HALF extracts exhibited significant anti-diabetic property and active components may be isolated and clinical studies is required for further evaluation. Because of the rich source of phytoconstients, nutritional elements will be helpful in processed food products as dietary supplements especially for malnutrition in children in the current era.展开更多
It is worthy to mention that the two broad bean cultivars displayed a surprising situation during the fruiting stage of growth. The absolute amount of pods yield was higher in cv. Assiut 125 than in cv. Assiut 84. Thi...It is worthy to mention that the two broad bean cultivars displayed a surprising situation during the fruiting stage of growth. The absolute amount of pods yield was higher in cv. Assiut 125 than in cv. Assiut 84. This situation was in contrast with that in the vegetative stage, where cv. Assiut 84 produced greater vegetative growth than cv. Assiut 125. Although the cv. Assiut 84 was less affected by the highest dose of copper, the cv. Assiut 125 was greatly affected by this dose. However, another surprising situation was recorded when the absolute values of fresh and dry matter of cv. Assiut 125 were much higher than cv. Assiut 84 at any used copper concentration. The fresh matters of the pods of cv. Assiut 84 and cv. Assiut 125 were 7.24 and 10.16 gm at the level of control and 6.69 and 7.59 gm at the level of 350 ppm Cu, respectively. Their dry matters were 1.99 and 3.52 gm at the level of control and 1.77 and 2.13 gm at the level of 350 ppm Cu2+ in cv. Assiut 84 and cv. Assiut 125, respectively. This contradiction was also extended when these copper-affected cultivars were sprayed by IAA. The cv. Assiut 84 responded slightly to IAA treatment. On the other hand, a considerable increase in the dry matter yield was recorded in the pods of cv. Assiut 125 at any used level of copper when compared to the non-sprayed plants treated by the same copper concentration. At the level of 350 ppm Cu2+ , the pod yield was 2-fold that of plants treated only by 350 ppm Cu2+ , without IAA spraying. Thus, even IAA behaved differently in its effect on the crop yield of the two tested broad bean cultivars. There are big and surprising variations in the accumulation of microelements and heavy metals in pods among the two broad bean genotypes, whatever the treatments used. These variations seemed to be complicated which might need further studies. The concentration of amino acids and their individuals also varied among the two cultivars;they increased in cv. Assiut 84 and decreased in cv. Assiut 125. The increased amino acids in cv. Assiut 84 are mostly used as precursors for phytochelatins. For the previous studies, thus the present work was conducted to explain the effect of Cu and interactive effect with IAA on two selected broad bean cultivars Assiut 84 and Assiut 125 during yielding production.展开更多
目的了解不同贮存方式羊肉中氨基酸变化规律并建立其货架期预测模型。方法以适龄羯羊肌肉组织为研究对象,分析3种贮存方式(4℃冷藏、–18℃冷冻、–20℃速冻)下羊肉肌肉组织中17种氨基酸含量变化。通过筛选含量变化显著的氨基酸成分,分...目的了解不同贮存方式羊肉中氨基酸变化规律并建立其货架期预测模型。方法以适龄羯羊肌肉组织为研究对象,分析3种贮存方式(4℃冷藏、–18℃冷冻、–20℃速冻)下羊肉肌肉组织中17种氨基酸含量变化。通过筛选含量变化显著的氨基酸成分,分析其随着货架期变化的规律,并构建羊肉货架期预测模型。结果数据表明宰杀当天和监测终点该羊肉中必需氨基酸/总氨基酸在37.2850%~40.2918%之间,必需氨基酸/非必需氨基酸在59.4510%~69.4922%之间,比例适宜,基本符合联合国粮食及农业组织/世界卫生组织(Food and Agriculture Organization of the United Nations/World Health Organization,FAO/WHO)人体理想蛋白质模式,属于有利于人体吸收的高质量蛋白质。3种贮存方式下,随着贮存时间的延长,羊肉中17种氨基酸含量均发生不同程度变化,其中冷冻和速冻方式下各氨基酸变化趋势更为显著。相关性分析表明,冷藏贮存方式下缬氨酸和其余大部分氨基酸相关系数大多在0.90以上,而在冷冻、速冻两种方式下,谷氨酸和丝氨酸之间相关系数均在0.90以上(–0.95和–0.91),表明它们之间有强极显著的负相关性(P<0.001),因此选择谷氨酸、丝氨酸作为货架期预测模型指示指标。皮尔森(Pearson)相关性分析表明羊肉各氨基酸组分中谷氨酸与丝氨酸相关性最高,其变化符合零级动力学模型。结论结合阿伦尼乌斯(Arrhenius)方程建立羊肉货架期预测模型,对3种贮存方式下不同温度条件(4、–18、–20℃)的羊肉所得货架期实测值进行货架期预测模型验证,实验结果表明理论货架期与实际货架期相对误差均在10%左右,该模型可根据代表性氨基酸组分对羊肉货架期进行预测,为不同新鲜度的羊肉质量评价提供依据。展开更多
分析4个菜用枸杞品种嫩茎叶的蛋白质、微量元素、维生素 C 等含量，采用模糊识别法和氨基酸系数比值法对菜用枸杞嫩茎叶蛋白质营养价值进行了评价。结果表明4个菜用枸杞品种含有较为丰富的蛋白质、微量元素和维生素 c，矿物质（Se 除外...分析4个菜用枸杞品种嫩茎叶的蛋白质、微量元素、维生素 C 等含量，采用模糊识别法和氨基酸系数比值法对菜用枸杞嫩茎叶蛋白质营养价值进行了评价。结果表明4个菜用枸杞品种含有较为丰富的蛋白质、微量元素和维生素 c，矿物质（Se 除外）含量均高于对照蔬菜，维生素 c 含量平均达到31 mg·hg－1，高于除卷心菜外的其他3种对照蔬菜。蛋白质含量为5．3～6．9％，是对照蔬菜平均值的4．2倍，同时必需氨基酸种类齐全，占总氨基酸的42％；菜用枸杞嫩茎叶蛋白质贴近度为0．8372～0．8569，氨基酸比值系数为65．63～68．67，仅次于芹菜，高于其他对照蔬菜。展开更多
文摘Background: Moringa oleifera plant is popularly known for its rich phytoconstituents and nutritional value and important medicinal values in both traditional and modern systems of medicine. We explored the present study for measurements of microelements, amino acid, phenolic content in hydro-al-coholic flower and leaf extracts of Moringa oleifera along with anti-diabetic activity in Streptozotocin (STZ)-induced diabetic male Wistar rats. Methodology: The micronutrients were determined by using atomic absorption spectrophotometer at 285 nm and 422 nm for Calcium (Ca), phosphorus (P), Iron (Fe), and Zinc (Zn), etc. The trace elements were also measured by spectrophotometer. The essential amino acid was determined by using Amino acid analyser. The total phenolic content in hydro-alcoholic extracts (flower and leaf) M. oleifera measured the absorbance at 760 nm by UV spectrophotometer. The screening of anti-diabetic activity HAFE and HALE of Moringa oleifera at two different dose of 100 and 200 mg/kg b.w. for 21 days were performed by determining the changes in biochemical parameters. Result and Discussion: The results revels that the presence of micronutrients, trace elements and amino acids in both flower and leaf of M. oleifera. The hydrolaocholic extracts of HAFE and HALE at 200 mg/kg b.w. showed significant antidiabetic activity compared with standard Glibenclamide. Whereas dose at 100 mg/kg b.w. showed moderate activity. Conclusion: In conclusion, the M. oleifera exhibits more effectiveness against STZ-induced diabetes. The HAFE and HALF extracts exhibited significant anti-diabetic property and active components may be isolated and clinical studies is required for further evaluation. Because of the rich source of phytoconstients, nutritional elements will be helpful in processed food products as dietary supplements especially for malnutrition in children in the current era.
文摘It is worthy to mention that the two broad bean cultivars displayed a surprising situation during the fruiting stage of growth. The absolute amount of pods yield was higher in cv. Assiut 125 than in cv. Assiut 84. This situation was in contrast with that in the vegetative stage, where cv. Assiut 84 produced greater vegetative growth than cv. Assiut 125. Although the cv. Assiut 84 was less affected by the highest dose of copper, the cv. Assiut 125 was greatly affected by this dose. However, another surprising situation was recorded when the absolute values of fresh and dry matter of cv. Assiut 125 were much higher than cv. Assiut 84 at any used copper concentration. The fresh matters of the pods of cv. Assiut 84 and cv. Assiut 125 were 7.24 and 10.16 gm at the level of control and 6.69 and 7.59 gm at the level of 350 ppm Cu, respectively. Their dry matters were 1.99 and 3.52 gm at the level of control and 1.77 and 2.13 gm at the level of 350 ppm Cu2+ in cv. Assiut 84 and cv. Assiut 125, respectively. This contradiction was also extended when these copper-affected cultivars were sprayed by IAA. The cv. Assiut 84 responded slightly to IAA treatment. On the other hand, a considerable increase in the dry matter yield was recorded in the pods of cv. Assiut 125 at any used level of copper when compared to the non-sprayed plants treated by the same copper concentration. At the level of 350 ppm Cu2+ , the pod yield was 2-fold that of plants treated only by 350 ppm Cu2+ , without IAA spraying. Thus, even IAA behaved differently in its effect on the crop yield of the two tested broad bean cultivars. There are big and surprising variations in the accumulation of microelements and heavy metals in pods among the two broad bean genotypes, whatever the treatments used. These variations seemed to be complicated which might need further studies. The concentration of amino acids and their individuals also varied among the two cultivars;they increased in cv. Assiut 84 and decreased in cv. Assiut 125. The increased amino acids in cv. Assiut 84 are mostly used as precursors for phytochelatins. For the previous studies, thus the present work was conducted to explain the effect of Cu and interactive effect with IAA on two selected broad bean cultivars Assiut 84 and Assiut 125 during yielding production.
文摘目的了解不同贮存方式羊肉中氨基酸变化规律并建立其货架期预测模型。方法以适龄羯羊肌肉组织为研究对象,分析3种贮存方式(4℃冷藏、–18℃冷冻、–20℃速冻)下羊肉肌肉组织中17种氨基酸含量变化。通过筛选含量变化显著的氨基酸成分,分析其随着货架期变化的规律,并构建羊肉货架期预测模型。结果数据表明宰杀当天和监测终点该羊肉中必需氨基酸/总氨基酸在37.2850%~40.2918%之间,必需氨基酸/非必需氨基酸在59.4510%~69.4922%之间,比例适宜,基本符合联合国粮食及农业组织/世界卫生组织(Food and Agriculture Organization of the United Nations/World Health Organization,FAO/WHO)人体理想蛋白质模式,属于有利于人体吸收的高质量蛋白质。3种贮存方式下,随着贮存时间的延长,羊肉中17种氨基酸含量均发生不同程度变化,其中冷冻和速冻方式下各氨基酸变化趋势更为显著。相关性分析表明,冷藏贮存方式下缬氨酸和其余大部分氨基酸相关系数大多在0.90以上,而在冷冻、速冻两种方式下,谷氨酸和丝氨酸之间相关系数均在0.90以上(–0.95和–0.91),表明它们之间有强极显著的负相关性(P<0.001),因此选择谷氨酸、丝氨酸作为货架期预测模型指示指标。皮尔森(Pearson)相关性分析表明羊肉各氨基酸组分中谷氨酸与丝氨酸相关性最高,其变化符合零级动力学模型。结论结合阿伦尼乌斯(Arrhenius)方程建立羊肉货架期预测模型,对3种贮存方式下不同温度条件(4、–18、–20℃)的羊肉所得货架期实测值进行货架期预测模型验证,实验结果表明理论货架期与实际货架期相对误差均在10%左右,该模型可根据代表性氨基酸组分对羊肉货架期进行预测,为不同新鲜度的羊肉质量评价提供依据。
文摘分析4个菜用枸杞品种嫩茎叶的蛋白质、微量元素、维生素 C 等含量，采用模糊识别法和氨基酸系数比值法对菜用枸杞嫩茎叶蛋白质营养价值进行了评价。结果表明4个菜用枸杞品种含有较为丰富的蛋白质、微量元素和维生素 c，矿物质（Se 除外）含量均高于对照蔬菜，维生素 c 含量平均达到31 mg·hg－1，高于除卷心菜外的其他3种对照蔬菜。蛋白质含量为5．3～6．9％，是对照蔬菜平均值的4．2倍，同时必需氨基酸种类齐全，占总氨基酸的42％；菜用枸杞嫩茎叶蛋白质贴近度为0．8372～0．8569，氨基酸比值系数为65．63～68．67，仅次于芹菜，高于其他对照蔬菜。
