Rhizome Galangal (Alpinia galanga L.) is considered a natural source of fiber, minerals and natural antioxidant compounds. This research was performed to study. The effect of adding galangal powder in different propor...Rhizome Galangal (Alpinia galanga L.) is considered a natural source of fiber, minerals and natural antioxidant compounds. This research was performed to study. The effect of adding galangal powder in different proportions (1.5, 2.5, and 3.5 gm.). Also, the effect of adding galangal extract (5%, 10% and 15%) in proportions from the total formula of beef burger patties on chemical, physiochemical, microbiological and sensory characteristics of beef burger patties during the frozen storage period at -18°C ± 2°C up to 6 months. The obtained results showed that galangal contained crude fibers (14.00%), Moisture (5.43%), K (1108.13 ppm), Mg (970 ppm), P (729.21 ppm) and Ca (370.81 ppm), while Fe (58.53 ppm) and Na (33.74 ppm) as macro and micro elements. The percent of antioxidants was about (92.60%), phenols (123.81 mg/g) and flavonoids were about (109.77 mg/g) was higher in galangal extract than galangal powder, which was recorded in its antioxidants (72.95%), phenolic (47.66 mg/g) and flavonoids (34.02 mg/g), as well as the improvement of physiochemical quality criteria (pH, protein and TBA values) throughout frozen storage in comparison with the control sample. In addition, galangal inhibited the growth and activity of microbial oxidation in tested prepared product. Also, beef burger patties containing the galangal exhibited a good sensory property and palatable, especially those containing (2.5 and 3.5 g) galangal powder and (10% and 15%) galangal extract, even after storage for 6 months under frozen conditions. The present results are useful for using galangal in the fortification of some meat products to improve nutritionally and healthy safe.展开更多
The protection system of products of geographical origin has become one hot subject with which various countries throughout the world are concerned. Results of element-Pb isotope geochemical mapping indicate that ther...The protection system of products of geographical origin has become one hot subject with which various countries throughout the world are concerned. Results of element-Pb isotope geochemical mapping indicate that there emerge a number of famous-brand high-quality product groups of geographical origin in China. The environment of production of China’s famous-brand white spirits of geographical origin at the Sichuan-Guizhou border is still a mystery to be solved. China has two main communities of white spirits of geographical origin, i.e., the most famous are Moutai and Wuliangye spirits. By element-Pb isotope geochemical tracing, we can establish the natural background geological, geographical and geochemical scientific data mark ers in close relation with source areas. Research on the product of geographical origin, named Kaempferia galangal L. in the Shuangjiao district, Yangchun, Guangdong Province, showed that the trace elements have an excellent heritance between Kaempferia galangal L. and soil in this area, and the trace elements are highly effective for tracing the origin.展开更多
本文以大孔吸附树脂为吸附剂,研究其对南姜黄酮类化合物的吸附分离特性,选择FL-1、FL-2、FL-3、AB-8四种大孔吸附树脂,比较其对南姜黄酮类化合物的吸附率和解吸率,筛选出最佳树脂,并对其动力学曲线和静态吸附性能进行了考察。结果表明,F...本文以大孔吸附树脂为吸附剂,研究其对南姜黄酮类化合物的吸附分离特性,选择FL-1、FL-2、FL-3、AB-8四种大孔吸附树脂,比较其对南姜黄酮类化合物的吸附率和解吸率,筛选出最佳树脂,并对其动力学曲线和静态吸附性能进行了考察。结果表明,FL-3树脂对南姜黄酮类化合物有较好的吸附和解吸效果。当上样液质量浓度为0.314 mg/m L,pH=4,上样液流速为1 m L/min时,FL-3树脂对南姜黄酮类化合物吸附量最大;以pH=5的80%乙醇为洗脱剂,洗脱液流速为1.5 m L/min时,解吸效果最好,达93.2%;经纯化后南姜黄酮类化合物纯度为40.3%,达到良好的分离纯化效果。展开更多
文摘Rhizome Galangal (Alpinia galanga L.) is considered a natural source of fiber, minerals and natural antioxidant compounds. This research was performed to study. The effect of adding galangal powder in different proportions (1.5, 2.5, and 3.5 gm.). Also, the effect of adding galangal extract (5%, 10% and 15%) in proportions from the total formula of beef burger patties on chemical, physiochemical, microbiological and sensory characteristics of beef burger patties during the frozen storage period at -18°C ± 2°C up to 6 months. The obtained results showed that galangal contained crude fibers (14.00%), Moisture (5.43%), K (1108.13 ppm), Mg (970 ppm), P (729.21 ppm) and Ca (370.81 ppm), while Fe (58.53 ppm) and Na (33.74 ppm) as macro and micro elements. The percent of antioxidants was about (92.60%), phenols (123.81 mg/g) and flavonoids were about (109.77 mg/g) was higher in galangal extract than galangal powder, which was recorded in its antioxidants (72.95%), phenolic (47.66 mg/g) and flavonoids (34.02 mg/g), as well as the improvement of physiochemical quality criteria (pH, protein and TBA values) throughout frozen storage in comparison with the control sample. In addition, galangal inhibited the growth and activity of microbial oxidation in tested prepared product. Also, beef burger patties containing the galangal exhibited a good sensory property and palatable, especially those containing (2.5 and 3.5 g) galangal powder and (10% and 15%) galangal extract, even after storage for 6 months under frozen conditions. The present results are useful for using galangal in the fortification of some meat products to improve nutritionally and healthy safe.
基金supported jointly by the National Scienctific Foundation of China (40772201)the Pgro-gam of Supporting New Centuary Excellent Talents in University, Ministry of Eduction (NCEL-070219)the Key Projects of Chinese Ministry of Education (207083)
文摘The protection system of products of geographical origin has become one hot subject with which various countries throughout the world are concerned. Results of element-Pb isotope geochemical mapping indicate that there emerge a number of famous-brand high-quality product groups of geographical origin in China. The environment of production of China’s famous-brand white spirits of geographical origin at the Sichuan-Guizhou border is still a mystery to be solved. China has two main communities of white spirits of geographical origin, i.e., the most famous are Moutai and Wuliangye spirits. By element-Pb isotope geochemical tracing, we can establish the natural background geological, geographical and geochemical scientific data mark ers in close relation with source areas. Research on the product of geographical origin, named Kaempferia galangal L. in the Shuangjiao district, Yangchun, Guangdong Province, showed that the trace elements have an excellent heritance between Kaempferia galangal L. and soil in this area, and the trace elements are highly effective for tracing the origin.
文摘本文以大孔吸附树脂为吸附剂,研究其对南姜黄酮类化合物的吸附分离特性,选择FL-1、FL-2、FL-3、AB-8四种大孔吸附树脂,比较其对南姜黄酮类化合物的吸附率和解吸率,筛选出最佳树脂,并对其动力学曲线和静态吸附性能进行了考察。结果表明,FL-3树脂对南姜黄酮类化合物有较好的吸附和解吸效果。当上样液质量浓度为0.314 mg/m L,pH=4,上样液流速为1 m L/min时,FL-3树脂对南姜黄酮类化合物吸附量最大;以pH=5的80%乙醇为洗脱剂,洗脱液流速为1.5 m L/min时,解吸效果最好,达93.2%;经纯化后南姜黄酮类化合物纯度为40.3%,达到良好的分离纯化效果。
