Food Science Commons^™

Design And Implementation Of Peristaltic Soft Pipe Robot, Zahng Yu, Wang Ning, Zhao Wen-Chuan, Lu Deng-Yu

Food and Machinery

Based on the movement principle of the crawling worm in nature and the characteristics of its structure and movement, a soft pipe crawling robot is designed with the hexaprism driver and the cylindrical driver as the main body of the robot. Two kinds of motion modes of the robot in the pipeline are analyzed.By using the finite element analysis technology, the deformation of the hexagonal prism driver and the cylindrical driver are verified to meet the robot motion requirements. Finally, the motion parameters of the robot in different motion modes are obtained through experimental tests, and the motion performance of …

Study On Air Volume Control And Performance Optimization Of Oven Based On Numerical Simulation, Li Hai-Yun, Zhang Kai, Huang Jia-Yu

Food and Machinery

A 9-point distributed thermocouple was used to measure the temperature field distribution of each layer of the oven in real time, and the oven temperature uniformity was determined and analyzed. Moreover, the internal temperature field of the oven was numerically simulated using computational fluid mechanics knowledge. The results showed that the uniformity of the temperature field inside the oven was significantly improved, by optimizing the structure of the rear baffle in the oven, adjusting the distribution of air volume, and changing the layout of the air outlet.

Design And Test Of Automatic Batch Weighing Equipment Based On Plc Control, Li Lei, Wang Lei, Zhou Jing

Food and Machinery

In order to improve the weighing accuracy and realize the automation of batching process, a set of automatic weighing and batching equipment based on PLC is designed. The equipment includes three sets of silo assembly, which can store and supply different solid materials according to the formula. The function of control system includes formula management, parameter debugging, automatic weighing, alarm display and so on. The material feeding process is not only divided into coarse feeding and accurate feeding, but also introduces compensation coefficient,which effectively improves the weighing accuracy. By analyzing the test results, the equipment improves the weighing accuracy, it …

Unfamiliar Thinking Expression Of Local Food Packaging Design, Chen Qin-Xue

Food and Machinery

Aiming at the obvious reality of the homogenization phenomenon, the significance of the defamiliarization expression in the local food packaging design was expounded. The multi-dimensional expression was carried out, including the defamiliarization of the local food packaging design in terms of concept presentation, visual stimulation, function expansion, and situation creation. The direction of the future local food innovation design was also prospected.

Effect Of Modified Atmosphere Packaging On Fresh-Keeping Of Mixed Fresh-Cut Fruits And Vegetables, Xu Chun-Lei, Wang Jia, Li Chang-Hong, Cui Jie-Yu, He Jia, Pu Yan-Qing, Lu Li-Xin, Wang Qing

Food and Machinery

With air filled in the box as a control group, three groups of different atmosphere-packaging atmosphere ratio, pre-treated four mixed fresh cut fruits and vegetables of carambola, Dangshan pear, cucumber, wheatgrass, stored at 4 ℃, Determine and analyze the quality of mixed fresh-cut fruits and vegetables by measuring and analyzing its physical and chemical indicators. The results showed that the mixed fresh-cut fruits and vegetables treated with 5% O₂+5% CO₂+90% N₂ had higher sensory quality after 8 days of storage, lower weight loss rate, good color and hardness, and lower soluble solids content. Growth is …

Extraction Technology And Antioxidant Activity Of Polyphenols From Peony Seed Of Paeonia Ostii, Cai Ru-Yu, Chang Shi-Min, Song Chun-Li

Food and Machinery

In this study, ultrasound-assisted extraction of polyphenols from paeonia ostii oil peony seeds was used. On the basis of a single factor test, the material-liquid ratio, ultrasonic time, extraction temperature and ultrasonic power were set as independent variables, and the polyphenol yield was response value, optimize the extraction process of peony seed polyphenols by Box-Behnken response surface method. The results showed that the best conditions for extracting polyphenols from peony seeds were the ratio of material to liquid 1∶14 (g/mL), ultrasonic power 160 W, ultrasonic time 98 min, extraction temperature 57 ℃. Under the best technological conditions, the extraction rate …

Introduction To Dr. Jerzy Leszczynski, P. Fu

Journal of Food and Drug Analysis

[No abstract available]

Codonopsis Javanica Root Extracts Attenuate Hyperinsulinemia And Lipid Peroxidation In Fructose-Fed Insulin Resistant Rats, K.-N. Chen, W.-H. Peng, C.-W. Hou, C.-Y. Chen, H.-H. Chen, C.-H. Kuo, M. Korivi

Journal of Food and Drug Analysis

From ancient times, Dǎngshēn (Codonopsis javanica) has been used in Chinese traditional medicine. In this study we investigated the anti-hyperinsulinemia and antioxidant properties of C. javanica root extracts in a rat model of insulin resistance (IR), induced by chronic fructose feeding. Twenty-four Sprague–Dawley rats were randomized into control, fructose-treated (10%, w/v), and fructose then C. javanica (Fru + Cod)-treated groups. After 8 weeks fructose feeding, increased fasting serum insulin levels (2.6 ± 0.45 μg/L) and insulin area under the curve confirmed the IR (p < 0.001). However, C. javanica treatment to fructose-fed rats significantly attenuated the hyperinsulinemia with correspondingly improved glucose tolerance. Weight gain in Fru + Cod group was comparably (p < 0.01) lower than in the fructose-fed group. Furthermore, IR-induced increased hepatic lipid peroxidation, as demonstrated by elevated malondialdehyde levels, were significantly (p < 0.001) alleviated by C. javanica treatment. These findings reveal that chronic fructose intake may facilitate IR and oxidative damage, which could be eradicated by improved antioxidant status. Accordingly, we found that C. javanica treatment significantly improved the antioxidant enzyme activities, including superoxide dismutase, glutathione peroxidase and glutathione reductase in the liver. These findings that fructose-induced hyperinsulinemia and associated oxidative stress could be attenuated by C. javanica root extracts. © 2013

Solubility Of Carbon Dioxide In Renneted Casein Matrices: Effect Of Ph, Salt, Temperature, Partial Pressure, And Moisture To Protein Ratio, Prabin Lamichhane, Prateek Sharma, Alan L. Kelly, Jens Risbo, Fergal P. Rattray, Jeremiah J. Sheehan

Nutrition, Dietetics, and Food Sciences Faculty Publications

The solubility of carbon dioxide (CO2) in the moisture and protein components of cheese matrices and the influence of changing pH, salt and temperature levels remains unclear. In this study, model casein matrices were prepared, by renneting of micellar casein concentrate (MCC), with modulation of salt and pH levels by adding salt and glucono delta-lactone, respectively, to the MCC solutions prior to renneting. Different moisture-to-protein levels were achieved by freeze-drying, incubation of samples at different relative humidities, or by applying varying pressures during gel manufacture. The CO2 solubility of samples decreased linearly with both increasing temperature and salt-in-moisture content, whereas …

Using University Research In Food Science To Study Their Characteristics And To Model The Research And Information Needs Of Researchers, Lutishoor Salisbury, Jeremy Smith, Abayomi Omotola Omolewu

University Libraries Faculty Publications and Presentations

Using University Research in Food Science to Study their Characteristics and to Model the Research and Information Needs of Researchers.

Making collection management decisions of resources is important and challenging. The challenges arise from finding the balance between the mission of libraries to meet the needs of a wide range of users; the high cost of subscription to journals and databases; the escalating annual increases imposed by publishers, and limited budget for collection management activities.

By identifying and analyzing the research output from faculty and graduate students from the Food Science Department to determine where they published and the sources …

Evaluating The Urate-Lowering Effects Of Different Microbial Fermented Extracts In Hyperuricemic Models Accompanied With A Safety Study, R.-J. Chen, M.-H. Chen, Y.-L. Chen, C.-M. Hsiao, H.-M. Chen, S.-J. Chen, M.-D. Wu, Y.-J. Yech, G.-F. Yuan, Y.-J. Wang

Journal of Food and Drug Analysis

Uric acid (UA) is an end product of purine metabolism by the enzyme xanthine oxidase (XOD). Hyperuricemia is characterized by the accumulation of serum UA and is an important risk factor for gout and many chronic disorders. XOD inhibitors or uricase (catalyzes UA to the more soluble end product) can prevent these chronic diseases. However, currently available hypouricemic agents induce severe side effects. Therefore, we developed new microbial fermented extracts (MFEs) with substantial XOD inhibition activity from Lactobacillus (MFE-21) and Acetobacter (MFE-25), and MFE-120 with high uricase activity from Aspergillus. The urate-lowering effects and safety of these MFEs were evaluated. …

Lactobacillus Pentosus Gmnl-77 Inhibits Skin Lesions In Imiquimod-Induced Psoriasis-Like Mice, Y.-H. Chen, C.-S. Wu, Y.-H. Chao, C.-C. Lin, H.-Y. Tsai, Y.-R. Li, Y.-Z. Chen, W.-H. Tsai, Y.-K. Chen

Journal of Food and Drug Analysis

Psoriasis, which is regarded as a T-cell-mediated chronic inflammatory skin disease, is characterized by hyperproliferation and poor differentiation of epidermal keratinocytes. In this study, we aimed to determine the in vivo effect of a potentially probiotic strain, Lactobacillus pentosus GMNL-77, in imiquimod-induced epidermal hyperplasia and psoriasis-like skin inflammation in BALB/c mice. Oral administration of L. pentosus GMNL-77 significantly decreased erythematous scaling lesions. Real-time polymerase chain reaction showed that treatment with L. pentosus GMNL-77 significantly decreased the mRNA levels of proinflammatory cytokines, including tumor necrosis factor-alpha, interleukin (IL)-6, and the IL-23/IL-17A axis-associated cytokines (IL-23, IL-17A/F, and IL-22) in the skin of …

Long-Term Feeding Of Red Algae (Gelidium Amansii) Ameliorates Glucose And Lipid Metabolism In A High Fructose Diet-Impaired Glucose Tolerance Rat Model, H.-C. Liu, C.-J. Chang, T.-H. Yang, M.-T. Chiang

Journal of Food and Drug Analysis

This study was designed to investigate the effect of Gelidium amansii (GA) on carbohydrate and lipid metabolism in rats with high fructose (HF) diet (57.1% w/w). Five-week-old male Sprague-Dawley rats were fed a HF diet to induce glucose intolerance and hyperlipidemia. The experiment was divided into three groups: (1) control diet group (Con); (2) HF diet group (HF); and (3) HF with GA diet group (HF + 5% GA). The rats were fed the experimental diets and drinking water ad libitum for 23 weeks. The results showed that GA significantly decreased retroperitoneal fat mass weight of HF diet-fed rats. Supplementation …

Determination Of Urea In Milk Based On N-Bromosuccinimide–Dichlorofluorescein Postchemiluminescence Method, F. Nie, N. Wang, P. Xu, J. Zheng

Journal of Food and Drug Analysis

A new postchemiluminescence (PCL) reaction was observed when urea was injected into the reaction mixture after the CL reaction of N-bromosuccinimide and dichlorofluorescein. A possible reaction mechanism was proposed based on the studies of the CL kinetic characteristics, CL spectra, fluorescence spectra, and other experiments. A new flow injection CL method for the determination of urea was established based on the PCL reaction. The relative standard deviation for the determination of urea was 1.3% (n = 11, c = 5.0 × 10−8 g/mL). The CL intensity responded linearly to the concentration of urea in the range 2.0 × 10−9–1.0 × …

Regulatory Aspects Of Living Biological Material, S.-C. Jong, J.M. Birmingham

Journal of Food and Drug Analysis

Any living biological material is, in effect, a biotechnology factory complete with sophisticated process designs and its own source of venture capital. Biotechnology is the application of living material and its process system to obtain useful products or services. It is not limited to the recent developments in recombinant DNA techniques, monoclonal antibodies, and related processes and products, aspects with which it is most often identified, but includes the manufacture of nonrecombinant biological material, such as microorganisms and plants and animals from traditional breeding methods; biologically active compounds; and a variety of foods and drugs. Due to complex economic, social, …

Preparation And Intestinal Absorption Of L-Dopa-D-Phenylglycine, H.-P. Wang, Y.-B. Fan, H.-H. Lu, W.-L. Hsu

Journal of Food and Drug Analysis

L-Dopa-D-phenylglycine was synthesized in this laboratory as L-dopa derivative for improving its intestinal absorption. As designed for transport through the intestine via oligopeptide transporter (PepT1), the competition of this dipeptide with known substrates for PepT1 in brush-border membrane vesicle (BBMV) was investigated. At the presence of L-Glycinyl-L-proline (L-Gly-L-Pro), L-Glycinyl-L-phenylalanine (L-Gly-L-Phe) or cephradine, the uptake of L-dopa-D-phenylglycine in BBMV was reduced to 54.1 ± 4.5%, 57.6 ± 5.2% or 62.9 ± 10.2%, respectively. The inhibition by these dipeptides and the tripeptide mimetic amino-β-lactam was significantly higher than by amino acids L-Phenylalanine (L-Phe) or L-dopa. The results suggested that the intestinal H …

Effect Of Processing On Sequence Of Cytochrome B Gene And Its Restriction Site In The Meat Of Puffer Takifugu Rubripes, C.-A. Cheng, Y.-W. Hsieh, T. Noguchi, O. Arakawa, D.-F. Hwang

Journal of Food and Drug Analysis

The polymerase chain reaction (PCR) and direct sequence analysis were used to determine the amount of genetic variation in a 376-nucleotide region of the mitochondrial cytochrome b gene in fresh, frozen and steam sterilized meats of puffer Takifugu rubripes, a diversity of sequence between fresh, frozen and steam sterilized meats was not found. The puffer specimens collected from either culture ponds in Taiwan or wild seawaters and culture waters in Japan had the same sequence of 376-nucleotide region. Restriction enzyme BstZI was found to cut the amplified region of cytochrome b gene in fresh, frozen and steam sterilized meats of …

Solid-Phase Extraction And High-Performance Liquid Chromatographic Analysis Of Prednisone Adulterated In A Foreign Herbal Medicine, Y.-R. Ku, Y.-C. Liu, J.-H. Lin

Journal of Food and Drug Analysis

Prednisone was detected in a herbal medicine from Southeast Asia using thin layer chromatography (TLC) and ultraviolet spectroscopy (UV). After treating with solid-phase extraction (SPE), the sample was further assayed by high-performance liquid chromatography (HPLC). The sample solution was achieved with a silica gel cartridge conditioned with methanol and chloroform in sequence, and then eluted with dichloromethane-isopropanol (6:A, v/v). Separation was conducted with an Inertsil ODS-80A reversed-phase column using isocratic elution with acetonitrile and water (3:7, v/v) as mobile phase. Fludrocortisone acetate was used as an internal standard and detection wavelength was at 240 nm. Calibration curve of standard prednisone …

Effect Of Microwave And Roast Treatment On The Degradation Of Sulfamethazine Residue In Tilapia Meat, C.-C. Lan, B.-S. Hwang, M.-F. Tu

Journal of Food and Drug Analysis

Tilapia (Tilapia mossambica) was force-fed sulfamethazine (SMA) and residue of this antibiotic remained in the meat. We measured the change of residual SMA after microwave and roast treatment on Tilapia by different levels. The content of SMA in Tilapia increased slowly 6 hrs after feeding, had a sharp climb in 6-12 hrs and decreased gradually in 12-24 hrs. Taking the Tilapia after feeding in 1, 6, 12 and 24 hrs, we measured SMA amount in fish meat is 0.3, 0,45, 1.60 and 1.2 ppm respectively. Microwaving the fish meat after feeding in 6, 12, 24 hrs, we found SMA levels …

Elisa, Western Blotting, Immunocytolocalization And Immunoaffinity Column For Naturally Occuring Bioactive Compounds Using Monoclonal Antibodies, S.-J. Shan, W. Putalun, N. Fukuda, O. Morinaga, H. Tanaka, Y. Shoyama

Journal of Food and Drug Analysis

Anti-sennoside A (SA) and anti-glycyrrhizin (GC) MAbs were used for screening and cloning. And they were also used for ELISA. New western blotting method of determination for GC and ginsenoside was established that compounds separated by silica gel TLC were transferred to a polyvinylidene difluoride (PVDF) membrane. The membrane was treated with NaIO4 solution followed by BSA, resulting in a ginsenoside-BSA conjugate on the PVDF membrane which was stained by the general western blotting. Immunocytolocalization of GC in the fresh root of Glycyrrhiza species was conducted using anti-GC MAb after blotting to PVDF membrane. Immunoaffinity column chromatography using anti-ginsenoside Rb1 …