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
山姜属植物在我国分布广泛,主要产于东南部、西南部及台湾等地。该属大多数植物可以入药,使用价值很高。山姜属中药用药历史悠久,多具有散寒止痛、暖胃止呕、燥湿运脾等功效。系统检索中国知网、万方、PubMed、Web of Science、Springer...山姜属植物在我国分布广泛,主要产于东南部、西南部及台湾等地。该属大多数植物可以入药,使用价值很高。山姜属中药用药历史悠久,多具有散寒止痛、暖胃止呕、燥湿运脾等功效。系统检索中国知网、万方、PubMed、Web of Science、SpringerLink等国内外多个数据库,结果表明山姜属中药含有多种化学成分,其中黄酮类成分是山姜属中药的主要活性成分之一,具有抗溃疡、镇痛、抗肿瘤、抗氧化、抗炎、降血压、神经保护、抗抑郁、降尿酸、降血糖及抗菌等多种药理作用。山姜属中药黄酮类成分的药理活性广泛,药用价值高,因而在医药卫生领域有着极大的开发潜力和广阔的应用前景。该文通过查阅近年来的相关文献,对山姜属中药黄酮类成分的药理作用进行了综述,为山姜属中药黄酮类成分药理作用的全面研究提供理论基础,同时也为山姜属中药的深入研究与开发应用提供参考。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
The volatile oils from rhizome of Alpinia blepharocalyx K.Schum.and A.kwangsiensis T.L.Wu et Senjen were extracted by steam distillation and analyzed by gas chromatography-mass spectrometry.The results indicate that c...The volatile oils from rhizome of Alpinia blepharocalyx K.Schum.and A.kwangsiensis T.L.Wu et Senjen were extracted by steam distillation and analyzed by gas chromatography-mass spectrometry.The results indicate that cinnamic acid methyl ester,as the main component,makes up 90.88% and 94.54% of oils from A.blepharocalyx and A.kwangsiensis,respectively.Apart from cinnamic acid methyl ester,there are other 20 same components in two volatile oils,showing that two plants are close relationship from the point of chemotaxonomy.These results provide basic data for chemotaxonomy and comprehensive utilization of A.blepharocalyx and A.kwangsiensis.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.
文摘山姜属植物在我国分布广泛,主要产于东南部、西南部及台湾等地。该属大多数植物可以入药,使用价值很高。山姜属中药用药历史悠久,多具有散寒止痛、暖胃止呕、燥湿运脾等功效。系统检索中国知网、万方、PubMed、Web of Science、SpringerLink等国内外多个数据库,结果表明山姜属中药含有多种化学成分,其中黄酮类成分是山姜属中药的主要活性成分之一,具有抗溃疡、镇痛、抗肿瘤、抗氧化、抗炎、降血压、神经保护、抗抑郁、降尿酸、降血糖及抗菌等多种药理作用。山姜属中药黄酮类成分的药理活性广泛,药用价值高,因而在医药卫生领域有着极大的开发潜力和广阔的应用前景。该文通过查阅近年来的相关文献,对山姜属中药黄酮类成分的药理作用进行了综述,为山姜属中药黄酮类成分药理作用的全面研究提供理论基础,同时也为山姜属中药的深入研究与开发应用提供参考。
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。
文摘The volatile oils from rhizome of Alpinia blepharocalyx K.Schum.and A.kwangsiensis T.L.Wu et Senjen were extracted by steam distillation and analyzed by gas chromatography-mass spectrometry.The results indicate that cinnamic acid methyl ester,as the main component,makes up 90.88% and 94.54% of oils from A.blepharocalyx and A.kwangsiensis,respectively.Apart from cinnamic acid methyl ester,there are other 20 same components in two volatile oils,showing that two plants are close relationship from the point of chemotaxonomy.These results provide basic data for chemotaxonomy and comprehensive utilization of A.blepharocalyx and A.kwangsiensis.
