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Articles 4321 - 4350 of 4720
Full-Text Articles in Life Sciences
Optimization Of Ultrasound/Microwave Assisted Extraction (Umae) Of Flavones From Vaccinium Bracteatum Thunb Leaves, Chen Yiyong, Zhang Dejin
Optimization Of Ultrasound/Microwave Assisted Extraction (Umae) Of Flavones From Vaccinium Bracteatum Thunb Leaves, Chen Yiyong, Zhang Dejin
Food and Machinery
Vaccinium Bracteatum Thunb Leaves (VBTL) was used as material. An efficient ultrasound/microwave assisted extraction (UMAE) technique was employed to extract flavones from VBTL. The effects of microwave power, ratio of solvent to solid, temperature and time on the yield of flavones from VBTL were investigated. To optimize the extraction process, response surface methodology was used based on the results of single factor experiment. IR spectrum was scanned to validate the effect of UMAE technology compared with the traditional solvent extraction technology. The results indicated the optimal conditions of UMAE were 140 W of microwave power, 50 W of ultrasound power, …
Optimization On Extraction Technology Of Mushroom Mycelium Polysaccharides By Ultrasonic, Xue Jing, Wu Xiaotong, Wang Yingchao, Zeng Luying, Liu Jing
Optimization On Extraction Technology Of Mushroom Mycelium Polysaccharides By Ultrasonic, Xue Jing, Wu Xiaotong, Wang Yingchao, Zeng Luying, Liu Jing
Food and Machinery
Polysaccharides was extracted from Tricholoma mongolicum mycelium. The effect factors, including ultrasonic power, ultrasonic time, liquid-solid ratio and temperature, were optimized through orthogonal tests L9(34) on the basis of single factor experiment. Results showed that ultrasonic power 18% (rated power 900 W), ultrasonic time 20 min, liquid-solid ratio 40∶1 and extraction temperature 75 ℃. Under optimal conditions, the extraction yield of polysaccharides was 13.96%.
Effect Of Blanching Treaments On Quality Of Vacuum Fried Ginkgo Kernel, Han Hongwei, Xie Bowen, Xu Dan, Zhang Min, Liu Jie
Effect Of Blanching Treaments On Quality Of Vacuum Fried Ginkgo Kernel, Han Hongwei, Xie Bowen, Xu Dan, Zhang Min, Liu Jie
Food and Machinery
Taking the Big Buddha Finger ginkgo kernel as material, the effects were studied from blanching temperature and time on the time of POD enzyme's inactivation, moisture content, degree of starch gelatinization of ginkgo kernel and the microstructure, crispiness, oil content, color, sensory quality of vacuum fried ginkgo kernel. The results showed that with increasing of the blanching temperature and time, the degree of starch gelatinization and moisture content rose gradually, but the time of POD enzyme's inactivation decreased. The crispiness and color of the vacuum fried ginkgo kernel were better, but the oil content of it was higher. The vacuum …
Influence Of Perilla Leaf Superfine Powders On Dough Properties And Bread Quality, Tian Haijuan, Zhu Zhu, Zhang Chuanzhi, Yu Zishuai
Influence Of Perilla Leaf Superfine Powders On Dough Properties And Bread Quality, Tian Haijuan, Zhu Zhu, Zhang Chuanzhi, Yu Zishuai
Food and Machinery
Perilla leaf superfine powder were added to the dough, then produced bread, using Brabender farinograph and Brabender stretcher measuring the dough properties, and then determinated the fermentation characteristics, sensory quality, water retention, aging degree and specific volume of bread contained with Perilla leaf superfine powder. The results showed that Perilla leaf superfine powder adding quantity 6%，the decline of bread dough`s Farinograph and tensile properties were not obvious, the quality of the sensory quality of bread was good, with high water retention, low aging degree, volume of good healthy food. When Perilla leaf superfine powder adding amount was 6%~8%, the Farinograph …
Optimization Of Chinese Chestnut Shelling Peeled Process Using Microwave-Baking Joint, He Rui, Jia Lirong, Wang Jiaxing, Gao Hong
Optimization Of Chinese Chestnut Shelling Peeled Process Using Microwave-Baking Joint, He Rui, Jia Lirong, Wang Jiaxing, Gao Hong
Food and Machinery
Microwave-baking process was used to improve chestnut shelling peeled rate. Response surface methodology was employed to analyze the impact of microwave time, baking time and baking temperature on Chestnut shelling and to optimize the shelling rate and color index L* value. The results indicated that the impact of microwave time on the rate of shelling is greater than the baking time and the baking temperature. The microwave time was extremely significant to L* value. When the microwave time was 123 s, the baking temperature was 171 ℃ and the baking time was 128 s, the shelling rate could reach 97.96%, …
Antitumor And Antiangiogenic Effects Of Flavonoids, Li Xiangzhou, Luan Fangfei, Zhang Sheng, Huang Dan
Antitumor And Antiangiogenic Effects Of Flavonoids, Li Xiangzhou, Luan Fangfei, Zhang Sheng, Huang Dan
Food and Machinery
Flavonoids drugs are effective, natural, and their toxic and side effect are relatively mild. Otherwise, they have many kinds of biological effects such as anti-inflammatory, anti-bacterial, reducing blood fat, anti-aging and so on.The treatment of malignant tumor is difficult to conquer in the medical community. The majority of clinical antitumor drugs have side effects. This paper elaborated the research progress of anti-tumor and anti-angiogenesis of plant flavonoids from the cellular level, molecular level and animal models level, which can provide a reference for further development and utilization of flavonoids in antitumor and anti-angiogenesis.
Research And Application Progress Of The Mountain Orchard Rail Transport, Gong Zhiyuan, Li Yifan, Liu Yande, Shi Qi
Research And Application Progress Of The Mountain Orchard Rail Transport, Gong Zhiyuan, Li Yifan, Liu Yande, Shi Qi
Food and Machinery
As most of the mountainous hilly region has been the main production areas for apple, citrus fruit, pear, cherry and other fruits in China, the problems existed in transportation network lacking, high labor intensity and low efficiency during the working practice of transportation. Summarized the present application of the key technologies such as motive power, mechanical drive unit, rack construction of the self-propelled conveyor and traction type conveyer that experts home and aboard have developed on their own. And presented the performance indicators in terms of startup, upgoing, swerve, down and pullup. At the same time, described the state and …
Research Progress Of Difference Between Electronic Tongue And Real Taste Evaluation, Wang Xingya, Pang Guangchang, Li Yang
Research Progress Of Difference Between Electronic Tongue And Real Taste Evaluation, Wang Xingya, Pang Guangchang, Li Yang
Food and Machinery
Electronic tongue is a new analysis and detection equipment to study liquid sample information, in recent years, which has been more widely used in food industry. This paper introduces the basic principles of electronic tongue technology, similarities and differences with real evaluation methods of taste, status of equipment and its application in the food field, in order to propose new ideas for the development of electronic tongue equipment.
Research On Characteristics Of Burdock By Microwave Drying At Constant Temperature, Ji Fei, Li Zhenfeng, Li Jing, Xu Wanxiu
Research On Characteristics Of Burdock By Microwave Drying At Constant Temperature, Ji Fei, Li Zhenfeng, Li Jing, Xu Wanxiu
Food and Machinery
The drying characteristics of burdock were studied using self-made weight and temperature facilities. The moisture content and the internal temperature were acquired online. Taken microwave power density, temperature and sample depth as the influence factor, and the optimal parameters for drying burdock by microwave were obtained through orthogonal experiment. The optimized parameters were as followed: the power density 10 W/g, the internal temperature of sample 60 ℃, and the samples thickness 2 mm. Under these conditions, the rehydration rate R value and the color difference ΔE value of dried burdock were 3.77 and 64.37, respectively. ANOVA of the evaluation index …
Study On Characteristics On Depth Of Walnut By Hot-Air Drying, Wang Qinghui, Yan Shengkun, Li Zhongxin, Gao Zhenjiang
Study On Characteristics On Depth Of Walnut By Hot-Air Drying, Wang Qinghui, Yan Shengkun, Li Zhongxin, Gao Zhenjiang
Food and Machinery
To solve the problem of drying in walnut postharvest processing, the hot-air drying technology was applied to walnut. A specifically depth drying equipment was designed and the experiment was done. The drying characteristics of walnut were investigated under different drying temperatures (35, 40, 45, 50 ℃), air velocities (0.5, 1.0, 1.5, 2.0 m/s), and load depths (0.6, 0.9, 1.2, 1.5 m). Experimental results showed that the whole drying process occurred in the falling rate period, and the effect of drying temperature, air velocity and load depth on drying characteristics was significant. The optimal drying process was temperature 45 ℃, air …
Extraction Of Animal-Derived Dna In Processed Food And Establishment Of Multiplex Pcr Method, He Haining, Hong Xia, Feng Yusheng, Wang Yongsong, Jin Ying, Yuan Caixia, Qian Yingwen, Liu Qi, Gao Zhiying
Extraction Of Animal-Derived Dna In Processed Food And Establishment Of Multiplex Pcr Method, He Haining, Hong Xia, Feng Yusheng, Wang Yongsong, Jin Ying, Yuan Caixia, Qian Yingwen, Liu Qi, Gao Zhiying
Food and Machinery
In order to get high quantity and quality animal-derived DNA extraction from processed food, the CTAB method was improved for the PCR test. According to duck mitochondrial gene sequences, primers were designed and synthesized for detecting PCR system, optimizing reaction conditions and screening, establishing a triple PCR method. The amplified lengths of fragments were 116 bp for bovine, 212 bp for porcine, 322 bp for duck, respectively. The triple PCR assay to distinguish pork and duck from beef was developed. Lower amounts of meat than declared on the label. These practices are of great importance in the fight of forged …
Study On Detecting Method Of Preservative In Injecta, Yan Min, Wang Lixiong, Tian Renkui, Bai Yizhang
Study On Detecting Method Of Preservative In Injecta, Yan Min, Wang Lixiong, Tian Renkui, Bai Yizhang
Food and Machinery
HPLC and GC—MC methods determining several preservatives in injecta was studied. When HPLC method was conducted, with conditions of streaking under 230 nm wavelength for VWD UV detection and 50︰50 proportion of methanol and water in the mobile phase, the peak with obvious trailing were undesirable. while, using GC—MS method, the response value and separation efficiency were better than that of HPLC and the preservatives were easy to be qualitatively and quantitatively determined. Results: It was quick and easy to determine peak occurrence and separation effects preservatives in injecta with the GC—MS method. The linearity of peak area and concentrations …
Improvement For Bag Feeding Machine And Filling Valve Of Automatic Stand-Up Pouch Filling And Capping Machine, Wu Jinhong, Lin Chuping
Improvement For Bag Feeding Machine And Filling Valve Of Automatic Stand-Up Pouch Filling And Capping Machine, Wu Jinhong, Lin Chuping
Food and Machinery
Introduced the structure and process technique of automatic stand-up pouch filling and capping machine, and put forward an improved plan of new style bag feeding machine and filling valve, by analyzing the existing bag feeding machine, filling valve’s process technique, and structural. Without changing control program, it saves the installation space and operation stability of bag feeding machine. By changing the installation site of filling valve’s seal ring, it uses double valve core and replaceable discharge port, to extend service life and improve the production flexibility.
Design Of Automatic Cleaning In Place System Based On Programmable Controller, Li Xiangwei, Liu Wei
Design Of Automatic Cleaning In Place System Based On Programmable Controller, Li Xiangwei, Liu Wei
Food and Machinery
Presents the design process of a automatic cleaning in place system based on programmable controller, including the overall design of the system, electrical control system design, work processes and the man-machine interface design, etc. The system adopts Siemens S7-200 PLC, Profibus DP fieldbus, man-machine interface and other advanced technologies, with multiple technological processes. After the system is put into operation, it works stably, operates simply, and has a high degree of automation, which brings good economic benefits for the company.
Effect Of Peel Reutilization On Quality Of Essential Oil From Orange (Citrus Sinensis Var. Valencia) Peel After Rubbing Peel, Liang Zengenni, Fu Fuhua, Shang Xuebo, He Shuang, Shan Yang
Effect Of Peel Reutilization On Quality Of Essential Oil From Orange (Citrus Sinensis Var. Valencia) Peel After Rubbing Peel, Liang Zengenni, Fu Fuhua, Shang Xuebo, He Shuang, Shan Yang
Food and Machinery
To study on utilization of residual orange peel in industrial production and increase of essential oil yield from orange peel, essential oil from yellow juice and residual orange peel were extracted inCitrus sinensis var. Valencia using steam distillation after grinding peel. Then the yield of essential oil extracted from yellow juice and residual orange peel was measured and their compounds were compared, andessential oilextracted from tangerine peel and tangerine endocarp were used as control. The results shows that the essential oil yield from orange peel can be increased (11.55%) by recycling residual orange peel, and the compounds of essential oil …
Antioxidant Activity Of Capsaicin In Vitro, Liu An, Wang Zhen, Liu Linfeng, Xiang Yi, Xiao Wenjun
Antioxidant Activity Of Capsaicin In Vitro, Liu An, Wang Zhen, Liu Linfeng, Xiang Yi, Xiao Wenjun
Food and Machinery
The antioxidant activity of capsaicin was evaluated through building antioxidant experiment model in vitro, taking capsaicin monomer as standard sample, and Vc as the contrast. By analyzing the reducing power of capsaicin and scavenging experiments on the DPPH radical, superoxide anion radical (O-2·), nitroso and hydroxyl radical (·OH), discussed capsaicin the antioxidant properties. The results showed that: reducing power of capsaicin increased with mass concentration increasing, and the DPPH radical, nitroso and clearance rate of ·OH with mass concentration increasing, and the scavenging effect and Vc basically similar, but with lower clearance to O-2·; the clearance of capsaicin to DPPH·, …
Ultrasonic-Assisted Two-Phase Aqueous Extraction And Antioxidant Activity Of Polyphenols From The Seed Of Synespalum Dulcificum, Ma Yidan, Liu Hong, Liao Xiaowei, Yan Ruixin, Qi Jinling
Ultrasonic-Assisted Two-Phase Aqueous Extraction And Antioxidant Activity Of Polyphenols From The Seed Of Synespalum Dulcificum, Ma Yidan, Liu Hong, Liao Xiaowei, Yan Ruixin, Qi Jinling
Food and Machinery
The seed of Synespalum dulcificum was untrasonified in the acetone-(NH4)2SO4 aqueous two-phase syetem to extract total polyphenils and different conditions for extraction of polyphenols antioxidant activity was investigated. Acetone was chosen as the best extraction solvent for this research. The acetone concentration, amount of the (NH4)2SO4, the ultrasonic time，extraction temperature, ratio of water to solid were discussed by the single factor experiment. The optimal extraction conditions were found to be: the concentration of acetone solution 50%, ultrasonic time 100 min and extraction temperature 60 ℃，ratio of water to solid …
Study On Optimal Conditions For Extracting Alkaloids From Areca Catechu Based On Multistage Cross Flow Extraction, Gao Xiaoting, Yang Dawei, Jiang Chenfeng
Study On Optimal Conditions For Extracting Alkaloids From Areca Catechu Based On Multistage Cross Flow Extraction, Gao Xiaoting, Yang Dawei, Jiang Chenfeng
Food and Machinery
In order to optimize the extraction process of alkaloids from areca catechu, the alkaloids was extracted by varied extraction solvent systems from areca catechu shell and the optimal extraction solvent was explored. According to the theoretical formula of multistage cross flow extraction, solid to liquid ratio and extractive grades was designed. Based on the results of single-factor test, the effect of extraction temperature, extraction time, pH value on extraction rate were conducted by orthogonal test of interaction. The result showed that the extraction rate of alkaloids was 7.241 7 mg/g under the optimal conditions: taking water as the solvent, solid …
Study On Combined Drying Technology Of Lotus Root Chips, Xing Fang, Wang Jianhui, He Xinyi, Wu Haiqing, Wu Jiali, Liu Pei
Study On Combined Drying Technology Of Lotus Root Chips, Xing Fang, Wang Jianhui, He Xinyi, Wu Haiqing, Wu Jiali, Liu Pei
Food and Machinery
To obtain the the processing technology of lotus root chips, taken lotus root as raw materials, the effects offreeze drying time, hot-air drying temperature and hot-air drying time on quality of lotus chips by combination of freeze drying and hot-air drying were explored. Experiment results indicated the optimized technological parameters of combined freeze dring and hot-air drying were freeze drying 4h, then hot-air drying at 50 ℃ for 2 h. At those conditions, the color value L*, a*, b* and hardness value of lotus root slices were 77.65, 0.96, 9.03 and 385.3 g, respectively. The results showed that combined drying …
Brewing Process Optimization Of Gordon Euryale Seed Wine, Li Yan, Lin Meiying, Li Yunsong
Brewing Process Optimization Of Gordon Euryale Seed Wine, Li Yan, Lin Meiying, Li Yunsong
Food and Machinery
The gordon euryale seed starch was hydrolyzed by α-amylase and glucoamylase to prepare starch syrup, and then the saccharomyces cerevisiae was added to prepare the health wine. The technology parameters were optimized by single factor and orthogonal experiments. And the optimal fermentation conditions were gotten. With the ratio of mass to water of 1︰10, the optimum liquefaction conditions were: addition of α-amylase of 0.4%, liquefaction temperature 70 ℃, and liquefaction time 60 min. The optimum saccharifying conditions were: addition of glucoamylase 0.5%, saccharifying temperature 60 ℃,and saccharifying time of 1 h. Under the saccharifying conditions, the sugar content of the …
Nutritional Benefits Of European Plums (Prunus Domestica L.), Liu Zhibin, Feng Jiangduo, Zhang Wen, Ni Li
Nutritional Benefits Of European Plums (Prunus Domestica L.), Liu Zhibin, Feng Jiangduo, Zhang Wen, Ni Li
Food and Machinery
European plum (Prunus domestica L.) and its dried products, commonly known as prune, are widely consumed in Unite States, European countries and worldwide. European plum, which is rich in polyphenols and other phytochemicals, possesses high nutritional values. This review summarizes the findings of published studies which examine the nutritional benefits, including antioxidant activity, the protection effect on cardiovascular system, anti colon cancer activity, relieving constipation effect and bone health improvement effect of European plum.
Preparation Of Rapidly Dissolving Tablets Of American Ginseng, Chen Sanbao
Preparation Of Rapidly Dissolving Tablets Of American Ginseng, Chen Sanbao
Food and Machinery
Using American ginseng extract as the raw materials，formulation and preparation process of American ginseng extract rapidly dissolving tablets were studied through the single factor experiment and orthogonal experiment which evaluated by disintegration time, taste. And research results showed the optimized formulation were as follows: 20% American ginseng extract powder, 12% CMS-Na, 20% MCC, 8% L-HPC, 0.4% menthol, 1.0％ sucralose, 0.2% citric acid. mannite as diluent. The orally disintegrating tablets could be obtained, with good taste, take convenience.
Research Progress On Quality Characteristics And Processing Adaptability Of Early Indica Rice, Li Yanan, Hu Peisong, Wang Li, Chen Zhengxing
Research Progress On Quality Characteristics And Processing Adaptability Of Early Indica Rice, Li Yanan, Hu Peisong, Wang Li, Chen Zhengxing
Food and Machinery
Early indica rice is an important support for China's food security. Based on the status of rich early indica rice resource but not used effectively, comparing and analyzing the qualitative character of early indica rice to explore the deep processing direction, and screening the suitable early indica rice varieties according to the quality characteristics of rice products, provided theoretical basis for the cultivation and promotion of good varieties of early indica rice.
Building Of Training Model And Teaching System Of Complex Food Safety Professionals, Yan Shijie, Liang Liya, Liu Jinfu, You Lingling, Zhang Pingping
Building Of Training Model And Teaching System Of Complex Food Safety Professionals, Yan Shijie, Liang Liya, Liu Jinfu, You Lingling, Zhang Pingping
Food and Machinery
The method of ‘whole process control’ was adopted, with the cooperation of ideological and professional, the combination of theory and practices, the tracking from raw material to product, and junior to senior management, the ‘1+4’ complex food safety training model of full quality control was built. Using the concept of ‘multiple synergies’, reformed teaching methods, optimized curriculum system and innovated practice teaching, the teaching system suitable for multiple food safety personnel talents was established.
Synthesis And Characterization Of Rice Husk Based Lignin-Bisphenol A Epoxy Resin, Li Ying, Li Xin, Yu Zhike, Zhou Xueying, Ni Caihua, Shi Gang
Synthesis And Characterization Of Rice Husk Based Lignin-Bisphenol A Epoxy Resin, Li Ying, Li Xin, Yu Zhike, Zhou Xueying, Ni Caihua, Shi Gang
Food and Machinery
Lignin was extracted using alkali distillation from rice husk, which is the food processing waste. As the structure of lignin and bisphenol A is similar, lignin modified bisphenol A epoxy resin could be prepared under alkali as catalyst by blending them. It can be concluded that when the lignin substitution rate was 20%, the epoxy value of the epoxy resin was 0.3, the weight-average molecular weight was 6 045, and the molecular weight distribution was relatively uniform.
Physical Properties Of Edible Composite Films Based On Chitosan And Whey Protein Isolate, Wang Yaosong, Zhao Liming, Wu Yanqing
Physical Properties Of Edible Composite Films Based On Chitosan And Whey Protein Isolate, Wang Yaosong, Zhao Liming, Wu Yanqing
Food and Machinery
The chitosan with different molecular weights (MW: 50 kDa, 250 kDa, 500 kDa and 1 000 kDa) were used to respectively combine whey proteins to form their composite films. It was expected that chitosan/whey proteins films endowed with versatile functionalities to meet practical requirement of food packaging applications. The equal volume of 3% (m/V) chitosan dissolved in 2% (m/V) acetic acid solutions and 12% (m/V) preheated (80 ℃ for 30 min) whey protein solutions was used to prepare resulting film-forming solutions after 2.4% (based on whey protein content, m/m) glycerol to make cast composite films. The functional propertied of the …
Drying Kinetics Of Pullulan-Based Film Forming Solutions, Zhou Yujia, Xiao Qian, Lu Xingchi, Deng Fangming
Drying Kinetics Of Pullulan-Based Film Forming Solutions, Zhou Yujia, Xiao Qian, Lu Xingchi, Deng Fangming
Food and Machinery
The drying kinetics of pullulan and pullulan-PEG film forming solutions were investigated. The results were as followed: the drying curves of pullulan-based films were divided into three stages: the rising rate, the falling rate, and the constant rate period; four mathematical models were fitted to the experimental data; among the drying models considered, the Wang and singh model was found to satisfactorily describe the drying kinetics of pullulan solutions. However, Modified Page equation-II model was found to satisfactorily describe the drying kinetics of pullulan-PEG solutions. As the drying temperature increased from 40 ℃ to 70 ℃, the effective moisture diffusion …
Analysis On Composition Of Organic Acids In Choerospondias Axillaris And Its Pastilles, Li Ti, Dai Taotao, Cheng Chao, Chen Jun, Wang Zhaojun, Liu Jiyan, Liu Chengmei, Liu Wei
Analysis On Composition Of Organic Acids In Choerospondias Axillaris And Its Pastilles, Li Ti, Dai Taotao, Cheng Chao, Chen Jun, Wang Zhaojun, Liu Jiyan, Liu Chengmei, Liu Wei
Food and Machinery
This paper aims at analyzing the composition and content of organic acids in Choerospondias axillaris and its pastilles, and discussing the effect of pastilles processing on content of organic acids, to provide a reliable basis for further development of Choerospondias axillaris product. LC—MS was adopted to analyze the organic acids in Choerospondias axillaris, and established a reversed-phase HPLC technique for the quantitative and qualitative analysis of organic acids. The results showed that all samples presented a similar profile mainly composed of 7 organic acids, where citric acid and malic acid were the major ones. The content of organic acids in …
Analysis Of Amino Acid Composition And Nutritional Evaluation Of 22 Spirulina(Athrospira) Strains, Yan Chunyu, Wang Suying, Dong Shirui
Analysis Of Amino Acid Composition And Nutritional Evaluation Of 22 Spirulina(Athrospira) Strains, Yan Chunyu, Wang Suying, Dong Shirui
Food and Machinery
No abstract provided.
Analysis Of Amino Acids Composition And Nutritional Value Evaluation Of Dried Osmund, Li Xueying, Lu Ning, Zhang Jing, Xu Hui, Guo Bingzheng
Analysis Of Amino Acids Composition And Nutritional Value Evaluation Of Dried Osmund, Li Xueying, Lu Ning, Zhang Jing, Xu Hui, Guo Bingzheng
Food and Machinery
To systematically analyze and evaluate amino acids of dried osmund, 17 kinds of amino acids were derivatized with 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate and then were analyzed by ultra performance liquid chromatography. L-tryptophan was quantitatively analyzed by ultraviolet spectrophotometric. Nutritional value evaluation of dried osmund protein was synthetically studied by methods of ratio coefficient of amino acid and fuzzy discernment. The results showed that the sample had 18 kinds of amino acids. The content of the total amino acids was up to 697.93 mg/g protein.The proportion of essential amino acids in total amino acids was 0.45, and the proportion of essential amino acids …