Food Science Commons^™

A Comparative Study Of Lipase And Diacetyl Tartaric Esters Of Mono-Glycerides (Datem) On Rheological Properties Of Dough By Pressing Process And Baking Properties Of Bread, Jia-Bao Wang, Mei-Feng Huang, Di Yang, Zi-Liang Su, Han Yu, Hong-Yan He, Song He

Food and Machinery

Lipase was added to dough system and compared with emulsifier DATEM in this study. The effects of lipase and emulsifier DATEM on the quality of bread were studied by the specific volume and texture of bread. The results showed that lipase could reduce hardness and chewiness of the brea, improve its anti-staling property, soften the bread crumb and increase its sensory evaluation score compared with DATEM.

Identification Of Peach Fruit Juice Adulterated With Water Based On Hydrogen And Oxygen Stable Isotopes, Yue Jiang, An Li, Xin-Xin Jin, Li-Gang Pan, Zhi-Yong Zhang

Food and Machinery

In this study, fresh peach juice is taken as the research object, and the moisture in the peach juice sample is extracted without fractionation by using the full-automatic vacuum condensation extraction technology. The hydrogen and oxygen isotopes in the water sample are simultaneously determined by using the element analyzer-stable isotope mass spectrometer (EA-IRMS). The reliability of the analysis method is evaluated by adding tests, and the change rule of hydrogen and oxygen isotope ratio after the peach juice is mixed with different proportions of moisture is discussed by using the established analysis method and multiple comparative analysis. The results showed …

Image Segmentation Of Sheep Ribs Based On U-Shaped Convolutional Neural Network, Shi-Da Zhao, Shu-Cai Wang, Zhen-Qiang Li, Yan Chen

Food and Machinery

Accurate identification of lamb rib area is an important content in the research of sheep carcass intelligent cutting equipment. Aiming at the problem that the color, texture and other characteristics of the carcass of the split half sheep are not obvious, and it is difficult to achieve accurate segmentation of the rib area, this paper takes the sheep rib as the research object, and proposes a sheep rib based on U-shaped convolution neural network Row image segmentation algorithm. First, collect sample images of lamb ribs, used image augmentation technology to expand the image data, and after normalization, established a lamb …

Pitch Design And Simulation Analysis Of Variable Pitch Spiral Structure, Fei-Xiang Li, Xiang-Dong Zong, Yong-Xiang Li, Jun-Hui Fu

Food and Machinery

A new design method of spiral structure with equal diameter and variable pitch is proposed to improve the spiral feeding accuracy of wheat flour. Solidworks software is used to establish a three-dimensional model and the wheat flour material is used for discrete element simulation to observe the feeding amount and feed opening of the spiral feed section. The stability of the flow rate is compared with the conventional equal-diameter variable pitch spiral structure. The tests shows that, compared with the existing equidistant spiral structure, the experimental design of the variable pitch spiral feed section is uniformly fed at the same …

Packaging Design Of Dong Culture Based On Eye-Tracking Technology, Shuo Yang, Chao Zhang, Xiao-Jun Zhu

Food and Machinery

This study taking the Dong nationality as an example, ethnic elements of Dong and eye-tracking experiments were combined. Integration analysis of consumer perceptual imagery evaluation of cultural elements, which clarifies that the Dong ethnic elements had unique visual symbol characteristics with disseminating value. From the perspective of modern aesthetics, the design of drinking water was integrated with the elements of ethnic symbols. Furthermore, the Dong people’s exclusive packaging language could lay the foundation to provide a reference method for contemporary ethnic food packaging design, as well as arousing consumers’ attention and aesthetic tasting ethnic culture.

Effect Of L-Cysteine Hydrochloride On The Contents Of Four Toxic Aldehydes And Fluorescent Ages In Biscuits, Ting Weng, Jie Zheng, Cai-Huan Huang, Shi-Yi Ou

Food and Machinery

In the current study, different levels of L-cysteine hydrochloride (0.3, 0.6, 1.0, 1.5 g/kg) were incorporated in dough for the preparation of biscuits to investigate the effect of L-cysteine on the appearance and the content of four toxic aldehydes and fluorescent advanced glycation end products(AGEs) in biscuits. The results showed that the addition of L-cysteine hydrochloride brightened the color of the biscuits, and cause a slight decrease in pH values. The incorporation of L-cysteine hydrochloride significantly decreased the content of 5-hydroxymethyl furfural(HMF), 3-deoxyglucosone(3-DG), glyoxal(GO), methylglyoxal(MGO) and fluorescent AGEs in biscuits in a dose-dependent manner. The addition of L-cysteine at the …

Preparation And Structural Characterization Of Zinc-Binding Antioxidant Peptides From Corbicula Fluminea Hydrolysate, Jing-Jing Liu, Yun-Tao Xu, Chen-Hui Zhu, Qian-Qian Huang, Yao-Ping Han, Xue-Feng Wang, Ran Zhang, Yang-Jun Dai

Food and Machinery

Using clam meat as protein source, the hydrolysate was obtained by enzymehydrolysis with neutral protease. Antioxidant peptides were then separated and purified from the enzymatich-ydrolysate of Corbicula flumineaby using glucose gel G-50. Zinc-binding antioxidant peptides were prepared according to optimal process. Qualitative analysis of chelate products was carried out byninhydrin method and sodium sulfide method. Ultraviolet spectra, Fourier infrared and fluorescent light spectra, X-radiation diffraction and scanning electron microscopy were applied to predict the structure of the chelate products. The results showed that the product powder is a kind of polypeptide zinc chelate. The carboxyl, amino and amide bonds of …

Determination Of Theresidual Volatile Phenols In Fish Meat And Its Products By The Flow Injection Spectrophotometric, Yin-Qi Cheng, Xin Zheng, Di Liu, Hao Feng, Ying Zhu, Qing-Zhi Peng, Tao-Hong Zhou

Food and Machinery

Using flow injection analysis technology, online distillation, extraction, and color development, a continuous flow analysis method for rapid determination of volatile phenol residues in fish meat and its products was established. The results showed that the linear range of the established detection method was 0.00~40.00 μg/L, with the correlation coefficient r=0.999 9, the detection limit of the method is 0.030 mg/kg, with the RSD ranging from 0.952% to 6.543% (n=11). The standard recovery rate was 72.000%~90.827%. Compared with the standard method, this method had the advantages of accuracy, efficiency, simplicity, and environmental protection, and was suitable for the promotion and …

Precise Positioning Of Micro Parts Based On Focusing-Zernike Matrix Algorithm, Ya-Jun Zhang

Food and Machinery

In order to improve the precise positioning of micro parts, focusing-Zernike matrix algorithm were proposed. Firstly, coarse and fine combination focus function was established based on the Krisch edge detection operator and Sobel method. Secondly, focusing window was selected dynamically, and the factor was corrected target size of clarity evaluation function, focus direction was judged by improved hill-climbing algorithm. Thirdly, improved Zernike moment was determined the maximum circumscribed unit circle based on the normalization of the target point, and the pixel was judged edge point using edge parameters, then the process was given. Experimental simulation was done by the automatic …

Expression, Strengthening And Development Of Color Association In Food Packaging Design, Li Xia

Food and Machinery

Food packaging with strong color association can not only transmit food information, but also let consumers understand the cultural connotation behind the product and attract consumers' attention. Taking the associativity of color as the starting point, analyzing the color elements in food packaging based on the relevant theories of color psychology, enhancing the color impact of modern food packaging design, and enhancing the visual experience of consumers, with creating more social value, optimize the color experience of consumers and provide color services for brand extension.

Optimization Of Extraction Process Of Lignans And Polyphenols By Ultrasonic Wave Assisted Extraction From Cinnamomum Camphora, Hai-Xu Zhou, Mei-Yu Xie, Han Gao, Bo Li, Tong-Chao Su, Zhong-Hai Li

Food and Machinery

Response surface methodology (RSM) based on Box Behnken Design (BBD) was employed to optimize the extraction conditions including the liquid-to-solid ratio, ultrasonic time, ethanol concentration and extraction time. The optimized conditions were as follows: liquid-to-solid ratio 1∶22 (g/mL), ultrasonic time 3 min, ethanol concentration 80% and extraction time 78 min. Under these conditions, the experimental yield of lignans and polyphenol were 44.89 mg/g, 48.17 mg/g, respectively.

Research On Process Optimization And Quality Of Intermittent Microwave-Hot Air Coupling Drying Peanut, Zheng-Zheng Ling, Guang-Yue Ren, Xu Duan, Lin-Lin Li, Li-Ping Ma, Tie-You Dong, Xin-Lin Li

Food and Machinery

In order to explore the optimal process parameters of intermittent microwave-hot air coupled peanut drying, the optimal process parameters of peanut intermittent microwave-hot air coupled drying were determined using the response surface optimization analysis method. The comprehensive score of peanut drying rate and drying energy efficiency as response values. The optimal conditions were as followed: hot air temperature 45 ℃, microwave intensity 1.25 W/g, microwave intermittent ratio 1.10. Under these conditions, it was verified that the peanut intermittent microwave-hot air coupling drying rate was 0.517 g/min, the energy efficiency was 0.433 MJ/g, the comprehensive drying score was 0.710, and the …

The Research Progress Of Ginseng Glycopeptide, Ping Yu, Qing-He Zhang, Chang-Bao Chen, Ming-Yue Zhao, Yu Zhan, Lian-Yun Du

Food and Machinery

In this review, the methods of extraction and separation, detection and analysis, structure identification and functional activity of ginseng glycopeptide were summarized and its future development direction was prospected.

The Effects Of High-Pressure Microfluidization On The Properties Of Lotus Seed Starch-Glycerin Monostearin Complex, Yi-Xin Zheng, Ze-Bin Guo, Yi Zhang, Bao-Dong Zheng, Shao-Xiao Zeng, Hong-Liang Zeng

Food and Machinery

In order to investigate the effects of microfluidization in different pressure combined with pullulanase debranching treatment on the structural properties and starch composition of lotus seed starch-glycerin monostearin complex, the determination of amylose, complex index, crystal structure, microstructural morphology and starch composition were discussed and analyzed. The results showed that the appropriate microfluidization conditions were more conducive to exert the debranching of pullulanase and facilitate the formation of lotus seed starch-glycerin monostearin complex. 80 MPa of microfluidization condition contributed to the crystal structure of the starch complex developing in the direction of high-microcrystalline V_6I-type, and the formation of …

Breeding Of Yarrowia Lipolytica With High Lipase Production By Atmospheric Room Temperature Plasma Mutagenesis, Ya-Mei Ji, Li-Mei Wang, Bin Qi

Food and Machinery

A lipase-producing Yarrowia lipolytica strain YL1 was mutagenized by atmospheric room temperature plasma. Tributyrin plate method, p-NPP method and acid-base titration method were used to screen out the target strain C4 with high lipase production, and then its genetic stability was studied. The results showed that the optimal mutagenesis time of Y. lipolytica strain YL₁ was 60 s, and the lethality rate of the strain reached 97.45%. The lipase activity of the mutant strain C4 was 13.4 U/mL, which was 82.6% higher than the original strain, and it was genetically stable after multiple generations of culture. Compared with the …

Study On Physicochemical Properties And Pyrolysis Properties Of Heated Non Combustion Tobacco Sheet, Xi Pan, Xu-Yan Song, Min Wei, Ran Li, Ai-Jun Dong, Jun-Jian An, Lei Wang

Food and Machinery

In order to evaluate the safety of heat-not-burn tobacco sheets during suction and establish the theoretical basis for adding flavors and fragrances in the process of heat-non-burn cigarettes, the mainstream heating-not-burn tobacco samples from domestic and foreign markets were comprehensively analyzed from physical and chemical indicators, thermogravimetric analysis and pyrolysis analysis. The results showed that: the content of hot water extract was 49.98%~66.59%, which difference was not remarkable. And the content of total sugar was 6.62%~28.93%, the content of reducing sugar was 4.79%~22.30%, the content of total alkaloid was 0.14%~1.13%, the content of total nitrogen was 0.31%~2.50%, and the content …

Improvement Of Feeding Device Of Packaging Machine And Design Of Geneva Mechanism With Curved Slots, Ya-Li Liu, Jun Zhang, Xiao-Ping Yang, Bang-Yin Xie

Food and Machinery

Aimed at the problem of incomplete discharge and sprinkling of powder material packaging machine during high-speed packaging, the geneva mechanism with curved groove was applied to automatic packaging machine to realize variable-speed feeding. This mechanism could run at lower speed in unloading area and at higher speed in non-unloading area. Using the relationship of Pro/E software, the 3D parameterized model of the feeding device was established. The results showed that the maximum packaging speed of variable speed feeding could be increased by 35.6%, and the geneva mechanism with curved groove was suitable for higher speed packing.

Inhibitory Effect Of Eugenol On Providence Vermicola In Aquatic Products, Tursunay Turgun, Fan Wang, Long-Long Fu, Nurgul Rahman, Xiao-Li Liu

Food and Machinery

The inhibitory activity of eugenol was evaluated on Providence vermicola, which is a strain isolated from spoiled spicy crab product. The results showed that the minimum inhibitory concentration (MIC) was 0.25 mg/mL. Compared with the control group, the cells of P. vermicola treated with MIC eugenol were severely deformed, and wrinkles appeared. The cell wall of P. vermicola treated with eugenol was destroyed, leading to the leakage of intracellular substances and higher extracellular soluble protein content. The enzyme activities of malic acid dehydrogenase (MDH) and succinate dehydrogenase (SDH) were reduced by 33.01% and 19.81%, respectively. The normal metabolic system …

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 …

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

Food and Machinery

No abstract provided.

Mitigation Of Salmonella On Food Contact Surfaces By Using Organic Acid Mixtures Containing 2-Hydroxy-4-(Methylthio) Butanoic Acid (Hmtba), Aiswariya Deliephan, Janak Dhakal, Bhadriraju Subramanyam, Charles G. Aldrich

Department of Food Science and Technology: Faculty Publications

Contaminated surfaces can transmit pathogens to food in industrial and domestic food-handling environments. Exposure to pathogens on food contact surfaces may take place via the cross-contamination of pathogens during postprocessing activities. Formaldehyde-based commercial sanitizers in recent years are less commonly being used within food manufacturing facilities due to consumer perception and labeling concerns. There is interest in investigating clean-label, food-safe components for use on food contact surfaces to mitigate contamination from pathogenic bacteria, including Salmonella. In this study, the antimicrobial effects of two types of organic acid mixtures containing 2-hydroxy-4-(methylthio) butanoic acid (HMTBa), Activate DA™ and Activate US WD-MAX™, …

Mitigation Of Salmonella On Food Contact Surfaces By Using Organic Acid Mixtures Containing 2-Hydroxy-4-(Methylthio) Butanoic Acid (Hmtba), Aiswariya Deliephan, Janak Dhakal, Bhadriraju Subramanyam, Charles G. Aldrich

Department of Food Science and Technology: Faculty Publications

Contaminated surfaces can transmit pathogens to food in industrial and domestic food-handling environments. Exposure to pathogens on food contact surfaces may take place via the cross-contamination of pathogens during postprocessing activities. Formaldehyde-based commercial sanitizers in recent years are less commonly being used within food manufacturing facilities due to consumer perception and labeling concerns. There is interest in investigating clean-label, food-safe components for use on food contact surfaces to mitigate contamination from pathogenic bacteria, including Salmonella. In this study, the antimicrobial effects of two types of organic acid mixtures containing 2-hydroxy-4-(methylthio) butanoic acid (HMTBa), Activate DA™ and Activate US WDMAX …

Positive Health Outcomes Associated With Live Microbe Intake From Foods, Including Fermented Foods, Assessed Using The Nhanes Database, Colin Hill, Daniel J. Tancredi, Christopher J. Cifelli, Joanne L. Slavin, Jaime Gahche, Maria L. Marco, Robert Hutkins, Victor L. Fulgoni Iii, Daniel Merenstein, Mary Ellen Sanders

Department of Food Science and Technology: Faculty Publications

Background: Live dietary microbes have been hypothesized to contribute to human health but direct evidence is lacking.

Objectives: This study aimed to determine whether the dietary consumption of live microbes is linked to improved health outcomes.

Methods: Data from the NHANES 2001–2018 were used to assess microbial intake and their adjusted associations with selected physiological parameters (e.g., blood pressure, anthropometric measures, and biomarkers) among adults aged 19 y and older. Regression models were constructed to assess the microbial intake with each physiological parameter and adjusted for demographics and other covariates. Microbial intake was assessed as both a …

Labeling Compliance And Online Claims For Ayurvedic Herbal Supplements On The U.S. Market Associated With The Purported Treatment Of Covid-19, Chevon R. Jordan, Calin M. Harris, Miranda I. Miranda, Diane Y. Kim, Rosalee S. Hellberg

Food Science Faculty Articles and Research

During the COVID-19 pandemic, many consumers increased their use of supplements that claimed to support immune health, including Ayurvedic preparations. The goal of this study was to analyze labeling compliance and online claims for Ayurvedic herbal supplements associated with the purported treatment of COVID-19. The physical product labels for 51 herbal supplements labeled as ginger, tulsi/holy basil, amla, vacha/calamus root, guduchi/giloy, cinnamon, ashwagandha, tribulus, or turmeric were assessed for U.S. regulatory compliance. Disease claims, structure/function claims, and general well-being claims were also examined. The online listings for products purchased online (n = 42) were examined for claims and for the …

Nanoclays‑Containing Bio‑Based Packaging Materials: Properties, Applications, Safety, And Regulatory Issues, Kalpani Y. Perera, Maille Hopkins, Amit K. Jaiswal Dr, Swarna Jaiswal

Articles

Food packaging is an important concept for consumer satisfaction and the increased shelf life of food products. The introduction of novel food packaging materials has become an emerging trend in recent years, which could be mainly due to environmental pollution caused by plastic packaging and to reduce food waste. Recently, numerous studies have been carried out on nanoclays or nanolayered silicate to be used in packaging material development as reinforcing filler composites. Different types of nanoclays have been used as food packaging materials, while montmorillonite (MMT), halloysite, bentonite (BT), Cloisite, and organically modified nanoclays have become of great interest. The …

The Kraft Heinz Company Global Nutrition Targets For The Innovation And Reformulation Of Food And Beverages: Current And Future Directions, Lynn Yu, Véronique Braesco, Sheri L. Cooper, Adam Drewnowski, Bridget Hannon Esteves, Andrea Luigi Budelli

Research outputs 2022 to 2026

Reformulating packaged foods has the potential to improve the nutrient density of the global diet. The present perspective illustrates The Kraft Heinz Company’s approach to product (re)formulation to develop healthier product lines that are lower in saturated fats, total sugars, and sodium, and contain health promoting components. Here we present the rationale for The Kraft Heinz Company’s global nutrition targets used for the global innovation and renovation of foods and beverages. The global nutrition targets use a category specific approach to set maximum levels for the main nutrients of public health concern: saturated fat, total sugars and sodium, taking into …

The Waxy Mutation In Sorghum And Other Cereal Grains Reshapes The Gut Microbiome By Reducing Levels Of Multiple Beneficial Species, Qinnan Yang, Mallory J. Suhr Van Haute, Scott E. Sattler, Devin J. Rose, Anthony Juritsch, Jing Shao, Kristin A. Beede, Robert J. Schmaltz, Jeff Price, John Toy, Amanda E. Ramer-Tait, Andrew K. Benson

Department of Food Science and Technology: Faculty Publications

Waxy starches from cereal grains contain >90% amylopectin due to naturally occurring mutations that block amylose biosynthesis. Waxy starches have unique organoleptic characteristics (e.g. sticky rice) as well as desirable physicochemical properties for food processing. Using isogenic pairs of wild type sorghum lines and their waxy derivatives, we studied the effects of waxy starches in the whole grain context on the human gut microbiome. In vitro fermentations with human stool microbiomes show that beneficial taxonomic and metabolic signatures driven by grain from wild type parental lines are lost in fermentations of grain from the waxy derivatives and the beneficial signatures …

Cover Crop Planting Practices Determine Their Performance In The U.S. Corn Belt, Katja Koehler-Cole, Roger W. Elmore, Humberto Blanco-Canqui, Charles A. Francis, Charles A. Shapiro, Christopher A. Proctor, Sabrina J. Ruis, Suat Irmak, Derek M. Heeren

Nebraska Cooperative Extension: Faculty and Staff Publications

Cover crop growing periods in the western United States Corn Belt could be extended by planting earlier. We evaluated both pre-harvest broadcast interseeding and post-harvest drilling of the following cover crops: (a) cereal rye (Secale cereale L.) [RYE]; (b) a mix of rye + legumes + brassicas [MIX1], (c) a mix of rye + oat [Avena sativa L.] + legumes + brassicas (MIX2), (d) legumes [LEGU]) and (e) a no cover crop control. These were tested in continuous corn (Zea mays L.) [corn–corn] and soybean [Glycine max (L.) Merr.]–corn systems [soybean–corn] at three sites in Nebraska …

Encapsulation Of Orange Peel Oil In Biopolymeric Nanocomposites To Control Its Release Under Different Conditions, Sanaz Ghasemi, Elham Assadpour, Mohammad Saeed Kharazmi, Shima Jafarzadeh, Masoumeh Zargar, Seid Mahdi Jafari

Research outputs 2022 to 2026

Orange peel oil (OPO) is one of the most common flavorings used in the food industry, but it is volatile under environmental conditions (the presence of light, oxygen, humidity, and high temperatures). Encapsulation by biopolymer nanocomposites is a suitable and novel strategy to improve the bioavailability and stability of OPO and its controlled release. In this study, we investigated the release profile of OPO from freeze-dried optimized nanocomposite powders as a function of pH (3, 7, 11) and temperature (30, 60, and 90 °C), and within a simulated salivary system. Finally, its release kinetics modelling was performed using experimental models. …

Efficacy Of Manufacturer Recommendations For The Control Of Salmonella Typhimurium And Listeria Monocytogenes In Food Ink Capsules Utilized In 3d Food Printing Systems, Allyson N. Hamilton, Kristen E. Gibson

Food Science Faculty Publications and Presentations

The adoption of 3D food printing systems has allowed for the personalization of food properties such as color, shape, and texture. This study aimed to determine if manufacturer cleaning recommendations for stainless steel food ink capsules utilized in 3D food printers adequately control foodborne pathogens of concern, as the recommendations have not been tested. A cocktail of ∼9 log₁₀ CFU/mL each of Salmonella Typhimurium and Listeria monocytogenes was inoculated onto the interior surface of the capsules. Capsules were either unsoiled or soiled with one of the following: butter, protein powder solution, powdered sugar solution, or a mixture …