Grades evaluation of Scrophulariae Radix pieces based on quality constant / 中国中药杂志

The quality constant evaluation method was applied in the grade evaluation of Scrophulariae Radix pieces. Nineteen batches of Scrophulariae Radix were measured for the appearance index. Harpagide and harpagoside were taken as index components for the content determination. The traditional grading standard and the modern quality control index were combined to calculate the quality constant and grade Scrophulariae Radix pieces. The results showed that the quality constants ranged between 156. 75 and 491. 65; according to the percentage mass constants,more than 80% were graded as first-class pieces,50%-80% were graded as second-class pieces,and the rest were graded as third-class pieces. The quality constants of first-class Scrophulariae Radix were >393. 32,that of second-class Scrophulariae Radix was between 245. 83 and 393. 32,and that of third-class Scrophulariae Radix was < 245. 83. The study shows that this method can objectively,reasonably and effectively classify Scrophulariae Radix pieces,and further promote and apply the evaluation method of slice model quality constant to prove the rationality,scientificity and practicability.

Research on grades evaluation of Glycyrrizae Radix et Rhizoma Praeparata Cum Melle based on Chinese medicine quality constant / 中国中药杂志

Grade of Chinese medicine slices is the most clear and most direct way to characterize the quality of Chinese medicine slices,also the basis of realizing " good quality and good prices",and it can guarantee the industry health development. Therefore,grade evaluation of Chinese medicine slices( GECMS) is highly valued and has grown rapidly in the industry. In recent years,due to the comprehensive and measureable features,the Chinese medicine quality constant evaluation method has been gradually recognized and applied.The paper is to establish a method of grades evaluation of Glycyrrizae Radix et Rhizoma Praeparata Cum Melle( GRRPCM) based on the Chinese medicine quality constant. 20 batches of samples were collected from Chinese herbal slices enterprises and 14 batches of qualified samples were selected to determine their external morphological indexes and inner quality indexes,then their Chinese medicine quality constants were calculated and the grades were determined. The results revealed that the relative quality constant of these samples ranged from 0. 70 to 14. 08,with a percentage quality constant from 4. 95 to 100. 00. If these samples were divided into three grades: the relative quality constant shall be ≥11. 27 or percentage quality constant ≥80. 03 for the first grade; the relative quality constant shall be <11. 27 but ≥7. 04,or percentage quality constant <80. 03 and ≥49. 99 for the second grade; while for the third grade,the relative quality constant shall be <7. 04 or the percentage quality constant <49. 99. This research indicates that Chinese quality constant can be used to objectively grade the herbal slices,providing reference for grades standard development of complex processing slices. In addition,the connotation of GECMS that has evaluate the mass discrepancy is discussed for expanding application.

Application of relative quality constant in grades evaluation of bran stir-baked Aurantii Fructus / 中国中药杂志

The specifications of Chinese herbal medicines naturally form and exist in the circulation and use of Chinese herbal medicines.Buyers and sellers negotiate price by quality. With the increasing demand for public health care,the cultivation,processing methods and circulation of Chinese herbal medicines have changed. Under the mode of pursuing output and short-term benefits,the traditional grade evaluation method has been difficult to apply to the current quality status of the pieces. Bran stir-baked Aurantii Fructus is a genuine medicinal material in Jiangxi province. It is widely used,but the quality level of bran stir-baked Aurantii Fructus on the market is not uniform. Quality constant method was used in this paper for grading the Chinese herbal slices of bran stir-baked Aurantii Fructus. Sixteen batches of different quality samples were collected and tested,and finally,eleven qualified batches of them were chosen as researcher objects. The results showed that the relative quality constant ranged from 2. 52 to 5. 60. The relative quality constant was ≥4. 48 for first grade bran stir-baked Aurantii Fructus,2. 80-4. 48 for the second grade pieces,and <2. 80 for the third grade pieces. The grades evaluation method for bran stir-baked Aurantii Fructus established in this paper included both appearance and index composition. The results were objective,accurate,quantitative,applicable,and the method was simple to operate and easy to popularize. This study showed that the quality constant method could be applied to the grade evaluation of bran stir-baked Aurantii Fructus,providing a reference for the grade evaluation of fruit-type decoction pieces.

Grade evaluation of Gardeniae Fructus based on quality constant method / 中国中药杂志

Grade evaluation method of quality constant is a kind of grading method for Chinese medicinal materials and decoction pieces,combining the external morphological index and internal content index. This method was used in this paper for grade evaluation of Gardeniae Fructus. By measuring the morphological and content indexes of 14 batches of Gardeniae Fructus,a method for calculating the quality constant of fruits was established,and the grade evaluation criteria were formed. At the same time,the NO inhibition effect of different grades of Gardeniae Fructus samples on RAW264. 7 cells induced by LPS was determined to investigate the relationship between the quality grade and pharmacodynamics of decoction pieces. The results showed that the quality constants of Gardeniae Fructus decoction piece samples ranged from 1. 46 to 4. 42. If the percentage quality constant ≥80% was classified into first-class,50%-80%as second-class and the rest as third-class,the quality constant was ≥3. 54 for first-class,2. 21-3. 54 for second-class and <2. 21 for third-class Gardeniae Fructus decoction pieces. The pharmacodynamic results showed that the pharmacodynamic intensity was positively correlated with the grade,which also proved the rationality of the grade evaluation method of quality constant.

Application of quality constant method in evaluation of Ligusticum chuanxiong pieces / 中国中药杂志

The method of classifying the quality grade of traditional Chinese medicine slices with cross section model quality constant was applied to the grade evaluation of Ligusticum chuanxiong pieces,and a reasonable grade standard of L. chuanxiong pieces was established. The purpose is to classify the 15 batches of L. chuanxiong pieces by combining the advantages of traditional grading with modern quality control indicators. By measuring the natural morphological parameters,processing parameters and the intrinsic content of ferulic acid,an important active ingredient,of the 15 batches of L. chuanxiong pieces collected from different manufacturers and different batches of different medicinal materials markets,we can synthesize the results. The mass constants and percentage mass constants are calculated and analyzed based on the above data. The results showed that the quality constants of 15 batches of L. chuanxiong pieces collected ranged from 0.53-3.00; if the percentage mass constants were more than 80%,50%-80% was second-class pieces,and the rest were third-class pieces,the evaluation results were as follows: the quality constants of first-class L. chuanxiong pieces were more than 2.40,the quality constants of second-class L. chuanxiong pieces should be 1.70-2.40,and the quality constants of third-class L. chuanxiong pieces should be less than 1.70. In this paper,the method of dividing the quality constants of the top blade model into different grades is further applied and practiced,which proves that the method is scientific,reasonable and multi-adaptable. At the same time,it enriches the research data of the grade evaluation of L. chuanxiong pieces,provides a useful reference for the promotion of the grade evaluation of L. chuanxiong pieces,and lays an experimental foundation for the next research of the subject group.

Grade Evaluation of Magnoliae Officinalis Cortex Processed with Ginger Juice Based on Relative Quality Constant / 中国实验方剂学杂志

Objective: To establish the grade evaluation standard for Magnoliae Officinalis Cortex processed with ginger juice by combining traditional morphology evaluation with modern intrinsic quality evaluation. Method: The morphological parameters and contents of intrinsic pharmacodynamic index components of 28 batches of Magnoliae Officinalis Cortex processed with ginger juice were determined, and the relative quality constants were calculated. Assuming that the average relative quality constant was 100%, more than 120%of the samples were classified as the first grade, 60%to 120%as the second grade, the remaining as the third grade. Result: The relative quality constant of Magnoliae Officinalis Cortex processed with ginger juice ranged from 0.09 to 1.78. The relative quality constant of the first grade was ≥ 0.64, the second grade was 0.32-0.64, while the third grade was ≤ 0.32. Conclusion: Relative quality constant combines external indexes of traditional morphology and internal indexes of pharmacodynamic components, which can objectively, reasonably and scientifically classify the grade of Magnoliae Officinalis Cortex processed with ginger juice, and provide reference for establishing and improving the grade evaluation standard of this decoction pieces.

Application of Chinese medicine quality constant in grades evaluation of Moutan Cortex / 中国中药杂志

There are more and more literature reports about the application of Chinese medicine quality constant in the grading evaluation of Chinese medicine decoction pieces. Chinese medicine quality constant has particularly prominent advantages in comprehensive quantification,so it has become a new method and mode for grading Chinese medicine decoction pieces,highly recognized by the academic circle. In order to determine the effect of Chinese medicine quality constant,a method of grades evaluation for Moutan cortex was established in this paper. 15 batches of samples were collected from Chinese herbal slices enterprises to determine the external morphological indexes and inner quality indexes,calculate the Chinese medicine quality constant of Moutan cortex,and divide them into different grades. The results revealed that the range of the relative quality constant of these samples was from 0. 016 to 0. 060,with percentage quality constant from 27. 4 to 100. 0. If these samples were divided into three grades: the quality constant of the first grade should be ≥0. 048 or the percentage quality constant ≥80. 0; the quality constant of the second grade should be <0. 048 but ≥0. 030 or percentage quality constant <80. 0 and ≥50. 0; the quality constant of the third grade should be <0. 030 or the percentage quality constant <50. 0. This research indicated that Chinese quality constant can objectively divide grades of Moutan cortex decoction pieces,providing reference for formulating grades standards. It was also verified from the results that traditional quality evaluation of Moutan cortex was consistent with quality constant,and the connotation of percentage quality constant was elaborated as well. At the same time,it is suggested to establish a third-party Chinese medicine slices rating agency as soon as possible,which is to unify the terminology and provide rating services for the market.

Grades evaluation of Cortex Moutan decoction pieces based on quality constant of Chinese medicine / 中成药

AIM To determine the quality constant of Chinese medicine and to establish a method of grades evaluation of Cortex Moutan decoction pieces.METHODS Cortex Moutan decoction pieces' morphological indexes should be observed and measured,the contents of phenol and paeoniflorin were measured by HPLC.Cortex Moutan decoction pieces was graded according to the quality constant of Chinese medicine which was calculated.RESULTS Cortex Moutan decoction pieces could be divided into three grades by the quality constant of Chinese medicine,the cutoff point of the firsts was greater than or equal to 1.56;the second was greater than or equal to 1.12 but less than 1.56;while the third was less than 1.12.CONCLUSION This method combines the apparent parameters of Cortex Moutan decoction pieces with its intrinsic quality,which can devide grades of it objectively and provides a reference for its classification.

Grades evaluation of Scutellariae Radix slices based on quality constant / 中国中药杂志

By measuring the morphological indexes and the marker components content of 22 batches of Scutellariae Radix slices as well as calculating the quality constant, this research was aimed to establish a new method of evaluating the specifications and grades of Scutellariae Radix slices. The quality constants of these samples were in the range of 0.04-0.49, which can be divided into several grades based on the real requirement. If they were divided into three grades, the quality constant was ≥0.39 for the first grade, <0.39 but ≥0.24 for the second grade, and <0.24 for the third grade. This work indicated that the quality constants characterizing both apparent parameters and intrinsic quality can be used as a comprehensive evaluation index to classify the grades of traditional Chinese medicine quantitatively, clearly and objectively. The research results in this paper would provide new ideas and references for evaluating the specifications and grades of traditional Chinese medicines.

Application of relative quality constant in grades evaluation of Glycyrrizae Radix et Rhizome pieces / 中国中药杂志

Quality constant evaluation is a comprehensive method for grades evaluation of traditional Chinese medicine pieces, but when it comes to Glycyrrizae Radix et Rhizome pieces, grades evaluation is diverged due to significant difference in contents of liquiritin and glycyrrhizic acid and unreasonable weight of index. To solve this problem, we have established a relative quality constant method in this paper to evaluate grades of Glycyrrizae Radix et Rhizome pieces. Twenty-nine batches of different quality samples were collected and tested, and finally, 17 batches of them were chosen as researcher objects. The results revealed that the range of the relative quality constant of these samples was from 1.78 to 11.49. When Glycyrrizae Radix et Rhizome pieces are divided into three grades: the relative quality constant of first grade is greater than or equal to 9.19; the second grade is greater than or equal to 5.75 but less than 9.19; while the third grade is less than 5.75. This research indicates that relative quality constant can divide the grades of herbal pieces in a scientific, reasonable, objective and specific way and remedy the shortage of quality constant perfectly. It provides a novel mode for grading pieces of Chinese medicine that contains multi-target ingredients.