Life Sciences Commons^™

Study On Antioxidant Effect Of Flavonoids From Artemisia Argyi And Its Application In Preservation Of Fresh Grade Breast, Yu-Hua Yang, Yan Huang, Wei-Peng Zheng

Food and Machinery

In this paper, the total reducing power, O ·, ·OH and DPPH· scavenging capacity of the flavonoids from Artemisia argyi were studied by ultrasonic assisted extraction and macroporous resin purification. The changes of pH values, TBARS, TVB-N, redness value, hydrogen sulfide and other physical and chemical indexes of fresh grade breast and its effects on sensory quality were investigated .The results showed that the purified flavonoids from Artemisia argyi had a strong total reduction power and a good linear relationship, with the good scavenging ability for O ·, ·OH, and DPPH·, and the scavenging ability has a certain dose-effect relationship …

Antimicrobial Activity Of Chrysanthemum Buds Aqueous Extract On Escherichia Coli And Its Application, Peng Fei, Min Xing, Chao-Qin Jiao, Bao-Xin Yang, Xin-Ying Hu, An-Ran Shao, Lin Lu, Huai-Bin Kang, Ling Guo

Food and Machinery

The purpose of this study was to evaluate the antimicrobial activity of Chrysanthemum buds aqueous extract (CBAE) on Escherichia coli, and discuss its application in meat products. The antimicrobial activity of CBAE against E. coli was evaluated by the determination of diameter of the inhibition zone (DIZ), minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC). The possible action mechanism was revealed by the effect of CBAE on the growth curve, and the changes in intracellular ATP concentration, cell membrane potential, and cell morphology. Finally, the CBAE was used in the preservation of cooked pork. The results showed that the …

Effects Of Irradiated Proces On Hypoglycemic Activity Of Inonotus Obliquus Polysaccharide, Lu Zhang, Xin Jiang, Li-Ying Jin, Chang-Qing Lin, Cheng-Bi Cui

Food and Machinery

The effect of ⁶⁰Co-γ ray irradiation on hypoglycemic activity of polysaccharides from Inonotus obliquus was explored. The polysaccharides of Inonotus obliquus under the irradiation doses of 5, 10, 20 and 30 kGy were extracted and their contents were determined. The experiment was performed on a mouse model of type I diabetes induced by streptozotocin (STZ) according to the grouping dose. The body weight, food intake and water intake of the mice were measured every day during the experiment, blood glucose levels were measured every 7 days, and glucose tolerance test (OGTT) was performed 30 days later. Blood samples were …

Purification Of Polyphenols From Dendrobium Huoshanense By Macroporous Resin And Its Antioxidant Activity, Ming-Wei Chen, Ming Wei, Liang-Fan Tao, Sen-He Qian

Food and Machinery

In this study, the ideal adsorbent for Dendrobium hu-oshanense polyphenols were obtained, after the comparison test for the adsorption-desorption properties of different types of resins. The purification parameters were optimized by adsorption and desorption tests. The antioxidant activities of polyphenols were evaluated in vitro. The results showed that AB-8 macroporous resin was considered as suitable material for purifying and separating Dendrobium huoshanense polyphenols.And the macroporous resin reached equilibrium within 150 min. The optimal processing parameters were as follows: an initial polyphenol concentration of 2.0 mg/mL, pH 4.0, a flow rate of 1.0 mL/min for feeding and a flow rate of …

Effect Of Extraction Method On The Functional Characteristics Of Leaf Protein From Green Leaves Ramie, Shi-Qi Zhi, Man-Sheng Wang, Feng-Ling Ye, Long Chen, Xiao-Ting Zhang, Hao-Nan Qiu, Qiang He, Xia-Yu Xiong, Yi Dong

Food and Machinery

In this paper, 3 kinds of methods such as ultrasonic assisted alkali solution extraction, salt solution extraction and water extraction, were used to extract the green leaf ramie protein, and the protein was also analyzed on the protein concentration, nitrogen solubility index, foaming property, foaming stability, emulsifying property and emulsifying stability. Results: The protein extracted with ultrasonic assisted salt solution exhibited the highest protein concentration (10.73 mg/mL) and nitrogen dissolution index (61.95%). Additionally, the foaming property (26.34%) and foam stability (24.49%) of the protein extracted by this method were significantly better than the other two extraction methods. The protein extracted …

Separation And Purification Of Polysaccharides From Liquid Fermentation Product By Cordyceps Tenuipes, Xiao-Ai Wang, Jian-Dong Liang, Xiao-Jiao Gao, Yuan-Jun Cai, Yu-Meng Qin, Wei-Yi Tian

Food and Machinery

Using Box-Behnken central combination test design and single factor test were used to optimize the fermentation process of cordyceps polysaccharide, water extraction and alcohol precipitation process and deproteinization process. The results showed that the optimum fermentation conditions of Cordyceps tenuipes were glucose 33.3 g/L, peptone 29.2 g/L, inoculation amount 3.9%. The optimum extraction conditions of Exopolysaccharides were concentration, 3 times ethanol, pH 6.0 and precipitation for 24 h. The optimum extraction conditions were 1∶40 (g/mL), extraction time 90 min, extraction times 2 times, and extraction temperature 80 ℃. In the purification of polysaccharides, the optimum deproteinization techniques of Sevage were …

Determination Of Blending Uniformity Of Cut Tobacco Based On Near Infrared Spectroscopy, Ke-Wen Zhao, Shi Chen, Hao Jiang, Long-Jun Li, Ze-Song Luo, Zhong-Wei Yin, Xing-Lin Zhang, Jing Liu

Food and Machinery

In order to establish rapid evaluation method of tobacco, cut stem and reconstituted tobacco, multiply ratios of sugars to alkali by potassium was selected as blending homogeneity evaluation index sign. Based on tobacco (500), cut stem (500), reconstituted tobacco (250) and the formula of tobacco production line (30) of the near-infrared spectral information and blending evenness index data, the pattern recognition model and the marker correction model of evenness index data of tobacco, cut stem and reconstituted tobacco were built. The results showed as follows. ① The overall information of near-infrared spectra of the three tobacco samples were differences. ② …

Progress In The Study Of Chelate Activity Of Polypeptide Minerals From Different Sources, Yu-Hang Lou, Hong-Yan Xu, Xin-Xiu Xia, Xi-Ming Yang, Chao Wang

Food and Machinery

In this paper, the preparation methods of chelating polypeptides from different sources with the metallic elements, such as calcium, iron, zinc and selenium, as well as the research progress on their antioxidant, antibacterial and immune-enhancing properties were reviewed, and the deficiencies of the existing researches were also analyzed.

Analysis Of Pyrolytic Properties Of Polysaccharides And Its Application In Cigarette, Huan Liu, Gui-Lin Chu, Li He, Jie-Lun Hu, Hai-Tao Luo

Food and Machinery

The types of polysaccharides that have been used in the research on moisturizing and flavoring of cigarettes are summarized. The types of pyrolysis products, pyrolysis mechanism, and the law of influence on cigarette moisturizing, flavor enhancement, and mainstream smoke are described in detail from the two aspects of cigarettes' own polysaccharides and externally added polysaccharides. The direction for future development is proposed.

Progress In Saccharomyces Cerevisiae Genome Research And Relative Application, Bi-Yan Chen, Li Wen

Food and Machinery

No abstract provided.

Research On Trajectory Optimization Algorithm Of Palletizing Robot Based On Jitter And Time, Xiao Lai

Food and Machinery

The palletizing robot was analyzed through its constructure, and constructed its kinematics model and expressed the function of the model. On this basis, used the cubic spline function to carry out reasonable trajectory planning according to the working conditions of the robot, and established the time and jitter as the most optimization model of optimal target. And then used particle swarm optimization to optimize the target model. Through further experimental verification, the results show that the trajectory planning method proposed in this paper can improve the efficiency of the palletizing robot while ensuring stability.

Prediction Model Research Of Ssc In Watermelon Based On Deep Learning And Visible/Near Infrared Spectroscopy, Shuang Wu, Guo-Jian Li, Deng-Fei Jie

Food and Machinery

In this study, near infrared spectroscopy combined with chemometrics building models to was used to detect the soluble solid contents from watermelon,through four methods, K nearest neighbors regression, Random forest regression, convolution neural network, convolution neural network added residual-block. Some deep learning modules with image processing, coding modules in 1-d ways and apply in Visible/Near-infrared spectroscopy for modeling exploration was used. As a result, deep learning modules showed great potential in Visible/Near-infrared spectroscopy data processing, and CNN model got 0.855 9 correlation coefficient and 0.778 1 °Brix RMSEP in prediction-set. The Res-CNN model achieved 0.893 2 correlation coefficient and 0.710 …

Packaging Design Of Children's Snack Food Based On Multi-Dimensional Interesting Expression, Li-Li Qiu

Food and Machinery

On the basis of analyzing the current development of children's snack food and its packaging design, children’s psychological cognitive characteristics during growth were discussed, and the important meanings for innovating packaging design of their snack food according to those characteristics were also put forward. Combined with the information from relevant literature, it was pointed out that the multi-dimensional interesting expression of children's leisure food packaging design should adhere to the basic principles of “safety first, interest and safety considered, and ‘people-oriented’ personalization”. The interesting expression of children's leisure food packaging should be realized through the multi-dimensional expression of color, image, …

Construction Of Green Food Packaging System Based On The Strategic Management Of The Supply Chain, Lu Zhao

Food and Machinery

In the context of increasingly-prominent global resources and environmental issues, this paper takes thewhole life cycle assessment as the basic principle, combining the basic characteristics of the supply chain network system of food packaging industry, and uses the core links-market investigation-packaging design-material selection-manufacturing and supporting manufacturing-recycling and processing-are the entry point. The green food packaging industry management process and technical system based on the strategic management of the supply chain cycle are initially constructed, and put forwards the practice path and future trend of the green food packaging system in the new era.

Translation And Expression Of Regional Cultural Elements In Tourism Food Packaging Design, Jiang-Dong Shan

Food and Machinery

In view of the main problems of tourism food packaging at present, this paper points out the important values of introducing regional cultural elements into tourism food packaging design, and elaborates the expression strategies of regional cultural elements in tourism food packaging design from the perspective of theoretical bases, translation processes and existing typical cases, and finally puts forward the development direction of regional cultural symbol innovation design into tourism food packaging in the future, aiming at realizing the "win-win" between spreading regional characteristic culture and promoting the benign development of tourism food.

Research On Temperature Measurement Of Fresh Food By Ir Imaging Technology, Li Cheng

Food and Machinery

In this study, the application of infrared thermal imaging technology in the detection of fresh agricultural products in cold chain of food was explored. Two fresh agricultural sugar beets and cucumbers were selected and placed on a tray, each covered with three materials (Tyvek, Metallized PET, Metallized Foam PET) to produce a different coated food tray. The food tray was placed in the cold room during the simulation distribution. The surface temperature of the food tray was detected and compared with the infrared thermal imaging camera and the needle detector. The results showed that the temperature measured by the infrared …

Effect Of Cryoprotectant On The Quality Of Quick-Frozen Pumpkin Puree And Its Mechanism, Dan-Lu Yang, Yi Shi, Jin-Hong Wu, Yu Ge, Xiang-Hong Li, Shao-Yun Wang

Food and Machinery

In order to evaluate the effect of novel cryoprotectants composed of pectin, collagen peptide and trehalose on the quality of quick-frozen pumpkin puree and relative mechanism, the stability of the pumpkin puree was characterized by the water separation proportion, average particle size and Zeta potential value, and the product quality was evaluated by texture properties, color and total soluble solid content. Scanning electron microscope (SEM) and laser scanning confocal microscope (CLSM) were also used to observe the microstructure of the sample. The results showed that the cryoprotectants could significantly slow down the increase tendency in WSP and particle size, and …

Design And Simulation Of Coffee Capsule Aluminum Foil Welding Equipment, Jing-Feng Ding, Xiao-Zuo Xu, Jiang Xu

Food and Machinery

In order to improve the welding quality of the aluminum foil at the bottom of the coffee capsule, a coffee capsule aluminum foil welding device based on a grooved cam drive was designed. The key transmission system of coffee capsule aluminum foil welding equipment was designed in detail, including the transmission system structure design, the calculation of groove cam motion curve, the derivation of convex contour curve, etc. In ADAMS, the key transmission system model in aluminum foil welding equipment was established, and a simulation environment was built to perform kinematic analysis on the designed transmission system. Rigid-flexible coupling analysis …

Design Of Bonding Device For Mounting Box And Analysis Of The Key Structure And Function, Ming-Min Dong, Ying Li, Chong-Chong Xie, Hai-Shan Li, Jian-Hui Yang

Food and Machinery

In order to adapt to the demand of diversification of gift box packaging, aiming at the low efficiency and high cost of the current production mode of artificial assembly line in packaging enterprises, an adhesive device for mounting box was designed. The device was based on the process of assembly line production mode and mainly composed of image acquisition unit, spray unit, grab unit and press unit. The image processing of a shell product and the motion simulation analysis of the manipulator were carried out in Matlab respectively. The result of image processing showed that Canny operator had better effect …

Optimization On Fermentation Process Of High Antioxidant Activity Of Malus Doumeri Fruits Beverage, Tian-De Cheng, Qing-Tong Xie, Li-Jun You

Food and Machinery

The comprehensive evaluation model of antioxidant capacity of Malus doumeri fruits beverage was determined by principal component analysis. Based on the antioxidant capacity of fermented beverage of Malus doumeri fruits, the single factor test and the response surface methodology were used to find out optimal fermentation conditions. Results showed that the comprehensive antioxidant capacity of Malus doumeri fruits fermented beverage was F_综合=1.214 2×(0.386 2F₁₊0.241 2F₂+0.196 2F₃). The optimal fermentation parameters of antioxidant fermented beverage of Malus doumeri fruits were: starting at pH 5.0, fermentation temperature 30 ℃, adding 20 g/100 mL of …

Research Progress Of Cryogenic Liquid Quick-Freezing And Its Application In The Processing Of Aquatic Products, Xi Zhao, Xue-Peng Li, Jin-Xiang Wang, Wen-Hui Zhu, Yong-Xia Xu, Jian-Rong Li, Ting-Ting Li, Xiao-Hua Guo

Food and Machinery

The working principle and technical characteristics of cryogenic liquid quick-freezing technology was introduced in this paper, then the research and development of freezing medium was discussed. The current research status, technical issues and the development trend of the application of cryogenic liquid quick-freezing technology in aquatic products processing was mainly summarized and discussed.

Research On The Optimization Of Ultrasonic Assisted Extraction Technology And Antioxidant Activities Of Polyphenols Extracted From Green Leaves Ramie, Xiao-Ting Zhang, Man-Sheng Wang, Hao-Nan Qiu, Feng-Ling Ye, Shi-Qi Zhi, Long Chen, Qiang He, Yan-Zhou Wang, Yi Dong

Food and Machinery

In this study, the optimum extraction parameters of polyphenols from leaves of Boehmeria nivea var. tenacissima were optimized, and the antioxidant activity of polyphenols from ramie leaves was evaluated by using gallic acid as a control. Results of polyphenols extraction experiment showed that the ultrasonic power and ultrasonic time have less effect on the amount of polyphenols extraction, and the influence of three factors on polyphenols extraction was ordered as: ethanol concentration (significantly)＞ extraction temperature ＞ solid-liquid ratio. Finally, the optimized polyphenols extraction process parameters were verified and determined as: 1∶33 (g/mL) of liquid-solid ratio, 40% of ethanol concentration and …

Application Of Microwave Treatment Technology In The Field Of Food Drying, Pan-Pan Liu, Guang-Yue Ren, Xu Duan, Li-Wei Jin, Ying-Min Zhang, Li-Ping Ma

Food and Machinery

Microwave has extremely strong penetrability and highly selective heating of only polar molecules, and its radiation effect can enhance the heat and mass transfer efficiency of moisture in the drying process. Therefore, microwave treatment technology has been widely used in the field of food drying. The mechanism and characteristics of microwave treatment were discussed in this review. Compared with the traditional drying method, the microstructure of materials under microwave treatment has more pores and less collapse, which is conducive to the removal of water, increases the mass transfer rate, reduces the drying energy consumption and improves the storage rate of …

Application Of Wireless Temperature Sensor In Food Logistics Preservation, Ran Xu, Xi-Long He

Food and Machinery

Temperature is an important factor that affects the preservation of food logistics, and the quality of food in the process of food logistics. The application research of wireless temperature sensors in food logistics preservation were summarized in this review, from three aspects including different types, installation locations and packaging forms of wireless temperature sensors. The application trend of wireless temperature sensor in food logistics preservation was also predicted.

Braf V600e-Mutant Cancers Treated With Vemurafenib Alone Or In Combination With Everolimus, Sorafenib, Or Crizotinib Or With Paclitaxel And Carboplatin (Vem-Plus) Study, Blessie Elizabeth Nelson, Jason Roszik, Filip Janku, David S Hong, Shumei Kato, Aung Naing, Sarina Piha-Paul, Siqing Fu, Apostolia Tsimberidou, Maria Cabanillas, Naifa Lamki Busaidy, Milind Javle, Lauren Averett Byers, John V Heymach, Funda Meric-Bernstam, Vivek Subbiah

Faculty, Staff and Student Publications

Combined BRAF + MEK inhibition is FDA approved for BRAF V600E-mutant solid tumors except for colorectal cancer. However, beyond MAPK mediated resistance several other mechanisms of resistance such as activation of CRAF, ARAF, MET, P13K/AKT/mTOR pathway exist among other complex pathways. In the VEM-PLUS study, we performed a pooled analysis of four phase one studies evaluating the safety and efficacy of vemurafenib monotherapy and vemurafenib combined with targeted therapies (sorafenib, crizotinib, or everolimus) or carboplatin plus paclitaxel in advanced solid tumors harboring BRAF V600 mutations. When vemurafenib monotherapy was compared with the combination regimens, no significant differences in OS or …

Effect Of Residual Sugar In High Sugar Grass Silages On Aerobic Stability, G. Pahlow, R. J. Merry, P. O'Kiely, T. M. Pauly, J. M. Greef

IGC Proceedings (1977-2023)

New varieties of Lolium perenne, bred for high sugar content, can contain up to 30% of water soluble carbohydrates (WSC). Only a fraction of such high contents are metabolised during a normal fermentation and the high residual sugar content (RSC) of these silages can improve the efficiency of use of nitrogen by ruminants. However, these RSC at opening for feed-out could be preferentially metabolised relative to fermentation products by all aerobically growing fungi and bacteria present on the forage. A high RSC thus can increase the risk of aerobic deterioration over that of extensively fermented silages, containing predominantly organic …

Recent Developments In Methods To Characterise The Chemical And Biological Parameters Of Grass Silage, R. S. Park, R. E. Agnew, M. G. Porter

IGC Proceedings (1977-2023)

Key points

1. Chemical analysis of forages is expensive, time consuming, environmentally unfriendly and relates poorly to the feed value for production purposes.
2. In vivo characterisation of animal feed is not a feasible option in terms of cost and analysis time.
3. NIRS is a rapid, non destructive, environmentally friendly, multi-analytical technique which can estimate the nutritive value of the feed.
4. NIRS predictive equations developed on a master instrument can be transferred to local and international sites.
5. Future assessment of forages necessitates rapid, stable, instrumentation for ‘in field’ studies.

The Effect Of Chop Length And Additive On Silage Intake And Milk Production In Cows, V. Toivonen, T. Heikkilä

IGC Proceedings (1977-2023)

Effects of reduced silage chop length on silage intake and milk production by dairy cows have been variable. Chopping of grass at harvest generally improves silage fermentation quality and consequently intake. The objective of this study was to assess the effect of chopping flail harvested silage ensiled with acid or biological additive prior to feeding on intake, milk yield and milk composition in dairy cows.

Evaluation Of Narrow-Row Forage Maize In Field-Scale Studies, W. J. Cox, J. H. Cherney, D. J. R. Cherney

IGC Proceedings (1977-2023)

Some dairy producers in the north-eastern USA adopted narrow row (0.38 m) maize forage production in the mid-1990s because of its 5% dry matter (DM) yield advantage (Cox et al., 1998). These dairy producers, however, continued to plant forage maize at high plant densities (125,000 plants/ha) under high N fertility (225 kg N/ha), despite research that indicated that forage maize had optimum DM yields and forage quality when planted at the recommended 100,000 plants/ha under 175 kg/ha of N fertility (Cox & Cherney, 2001). We evaluated forage maize at 0.38 and 0.76 m (conventional) row spacing under recommended vs. …

The Feeding Value Of Conserved Whole-Crop Wheat And Forage Maize Relative To Grass Silage And Ad-Libitum Concentrates For Beef Cattle, K. Walsh, P. O'Kiely, F. O'Mara

IGC Proceedings (1977-2023)

Grass is the predominant forage ensiled in Ireland. However, the relatively modest yields achieved in a single harvest allied to variability in digestibility and ensilability (and thus in intake and animal performance response) and the likelihood of effluent production create disadvantages for grass silage compared to the potential of some alternative forage crops. Thus, alternative forages are worthy of consideration on many farms. The objectives of this study were to quantify the relative intake, digestibility and performance of beef cattle offered grass silage, forage maize silage and whole-crop wheat (fermented or urea-treated), rank these relative to cattle offered an ad …