Digital Commons Network^™

Determination Of Eight Anions In Liquid Milk, Wu Ziling, Yao Xiaoqing, Shen Yingtao, Huang Jiale, He Minheng

Food and Machinery

Objective： A rapid method was established for the simultaneous determination of variety anions in liquid milk. Methods： The macromolecular protein in liquid milk was precipitated by acetonitrile, and a variety of anions were extracted. After purification by C₁₈ column, the material was separated by Dionex IonPac AS19-HC ion column with gradient elution of potassium hydroxide and conductivity detection. Finally, a method for the determination of bromate, thiocyanate, nitrite, nitrate, chlorate, perchlorate, phosphate and iodine ion in liquid milk was established using ion chromatograph. Results： The results showed that the correlation coefficients （R²）of eight kinds of anion …

Determination Of 17 Aldehydes In Baijiu （Chinese Liquor） By Direct Injection Gas Chromatography, Luo Yue, Zhong Ciping, Huang Ping, Chen Yanmei, Tang Jing, Yu Xiaoqin

Food and Machinery

Objective: To explore the content of aldehydes in Baijiu. Methods: A method for the determination of 17 aldehydes in Baijiu was established, and the methodological performance indexes were studied using statistics. Results: Through statistical analysis, the detection limit of 17 aldehydes in Baijiu was determined to be 0.7～5.9 mg/L, the limit of quantification was 1.9～14.6 mg/L, which passes the quality inspection of the calibration curve within the range of 0.6～320.0 mg/L, and the linear relationship meets the requirements. The recovery rate of intermediate standard addition in Baijiu was 73%～114%, the coefficient of variation in the laboratory was ≤11%, and the …

Solid Phase Extraction-Gas Chromatography-Flame Ionization Detection （Spe-Gc-Fid） For The Detection Of Mineral Oil Saturated Hydrocarbons （Mosh） In Infant Formula, Tang Wanli, Feng Yanying, Xiang Jun, Qin Haijiao, Hu Lingli

Food and Machinery

Objective: To establish a new accurate method for the determination of mineral oil saturated hydrocarbon （MOSH） in infant formula by solid phase extraction combined with gas chromatography-Flame Ionization Detection （SPE-GC-FID）. Methods: Different extraction methods such as soaking extraction, oscillating extraction, ultrasonic assisted extraction, liquid-liquid extraction were used to extract MOSH from infant formula milk powder, and different extraction solvents such as n-hexane, isooctane, benzene, mixed solvents were used to extract MOSH. The optimal extraction method and extraction solvent were determined based on the extraction amount of MOSH. The target compounds purified by AgNO₃ SPE column, and finally detected by …

Simulation Analysis Of Influence Of Pitch Variation On Flow Field Of Twin Screw Extruder With Different Direction, Zhang Yiming, Huang Zhigang, Xu Zhen, Cheng Yuanyuan

Food and Machinery

Objective: Taking polylactic acid （PLA） as an example, the flow channel distribution of twin-screw extrusion under different pitch was studied. Methods: In Solidworks, two 3D models with variable pitch and constant pitch were drawn according to the theoretical end curve equation and modified. Workbench software was used to generate the required analysis models with the swept mesh method for the two screw configurations, and then Polyflow fluid simulation software was used to simulate the actual situation. After obtaining the post-processing results, FieldView software was used to analyze the final results. The pressure, shear rate and viscosity of polylactic acid fluid …

Research Progress In Extraction Technology And Biological Activity Of Oleuropein, Guo Weiping, Lu Xu, Chu Zejun, Luo Denglin, Xiang Jinle, Xu Yunfeng

Food and Machinery

The review summarized the latest domestical and international research progress in the biosynthesis pathway, safety, extraction process, and biological activity of oleuropein in recent years. The problems in the olive industry was analyzed and its future development direction was prospected.

Comparison And Suggestions Of Food For Special Medical Purposes In Registration Management System At Home And Broad, Chen Hanqi, Liu Min, Yu Zhen, Hu Kun, Chen Xuan, Liu Dongbo

Food and Machinery

The registration management system of food for special medical purposes （FSMP） in China has been initially established. But compared with other developed countries, China's FSMP industry started late, and its system needs to be supplemented and improved. This research briefly describes the registration management mode of FSMP in our countries, analyzes the problems and challenges faced at present, sorts out the registration management system of FSMP in the European Union, the United States and Japan. Suggestions are put forward from three perspectives: product research and development, product access, and approval process, In order to provide more choices for people's health …

International Practice And Experience Of Mandatory Front Of Package Labels For Sugar-Sweetened Beverages: Evidence From Nutri-Grade Labeling In Singapore, Huang Zeying

Food and Machinery

The policy evolution, standard rules, supporting measures and implementation effects of the nutri-grade labeling in Singapore were summarized based on collected materials about Nutri-Grade labeling from the official website of Singapore Ministry of Health and literatures. The practical experience of nutri-grade labeling in mandatory disclosure of sugar information in nutrition information, evaluation of multi-form sugar-sweetened beverages, and prohibition of advertising of high-sugar beverages has important implications for the implementation of mandatory FOP labeling of sugar-sweetened beverages in China.

Subchronic Toxicity Study Of Acesulfame In Rats, Zheng Siyu, Teng Jingjing, Yang Tongjin, Wang Yan, Xia Xin, Bao Junhui

Food and Machinery

Objective： This study aimed to study the subchronic toxicity of acesulfame as a food additive and obtain the dosage of harmful effects not observed orally for 90 d. Methods： According to GB 15193.13—2015, eighty 4-week-old specific pathogen-free （SPF） healthy detached Sprague Dawley （SD） rats （half male and half female） were randomly divided into 4 groups. Rats were administered 4 500, 1 500, 500 and 0.0 mg/kg BW. acesulfame by gavage for 90 consecutive days, respectively. At the end of the experiment, samples of blood were collected for blood routine and biochemical analysis, and some organs were removed for histopathological examinations. …

Determination Of 27 Antiparasitic Drug Residues In Penaeus Vannamei By Liquid Chromatography-Tandem Mass Spectrometry Simultaneously, Zhang Lifang, Ma Ruixin, Zheng Baiqin, Song Wang, Zhou Xin

Food and Machinery

Objective: An ultra-high performance liquid chromatography-tandem mass spectrometry method was established for the simultaneous determination of 27 antiparasitic drug residues in Litopenaeus vannamei. Methods: The solution was used to extract antiparasitic drugs in the samples of L. vannamei. The supernatant after centrifugation was purified by C₁₈ and neutral alumina powder. The sample solution was analyzed by ultra-high performance liquid chromatography-tandem mass spectrometry and applied to the instrument workstation to perform data analysis. A Thermo Hypersil Gold aQ column was used as the separation column, and 0.1% formic acid acetonitrile and 10 mmol/L ammonium formate solution （containing 0.1% formic …

Study On The Integration Model Of Port Clearance In Food Supervision In The Guangdong Hong Kong Macao Greater Bay Area, Zhang Yiming

Food and Machinery

At present, the integration construction of the Guangdong Hong Kong Macao Greater Bay Area is deepening. Among them, the port customs integration model in food supervision in the Guangdong Hong Kong Macao Greater Bay Area has problems such as inconsistent regulatory standards, cumbersome customs clearance procedures, and information asymmetry, which have led to increasingly prominent issues of low food supervision efficiency. In this regard, effective innovation in the integration model of port clearance can be promoted by unifying the food safety supervision standards of Guangdong, Hong Kong, and Macao, constructing an integrated port clearance procedure mechanism, and strengthening information sharing …

Establishment Of Quechers-Uplc-Ms/Ms Method To Determine Three Kinds Of Ochratoxins In Coffee, Gao Yunkai, Chen Xiaomei, Chen Chunqian, Zhou Lingyu, Deng Yinglin, Yin Qingchun

Food and Machinery

Objective： A new method was developed for the simultaneous determination of three kinds of ochratoxins in coffee by ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) combined with QuEChERS pretreatment. Methods： Samples were extracted by acetonitri-water-formic acid solution (55∶40∶5) with ultrasonic, salted out with a QuEChERS salt pocket, and then purified with a (ZanChERS-Myco17) column. The chromatographic separation was performed on an ACQUITY UPLC BEH C₁₈ (1.7 μm, 2.1 mm×100 mm) column by gradient elution using a mobile phase comprising 0.2% formic acid aqueous solution and acetonitrile. In the positive ion mode of electric spray, the samples detected were used …

Effects Of Thawing Methods On Physicochemical Properties Of Microwave-Dried Beetroots, Liu Yan, Tang Xiaoxian, Gao Dan, Duan Zhenhua, Ren Aiqing

Food and Machinery

Objective: This study aimed to explore the best thawing method for beetroots in freeze-thaw pretreatment. Methods: The frozen beetroots were thawed using different thawing methods （room temperature thawing, running water thawing, refrigeration thawing, microwave thawing, and ultrasonic thawing）, and then the thawed beetroots were subjected to microwave drying. The effects of different thawing methods on the microwave drying time, rehydration ratio, color, betalains content, total phenolic content, and total flavonoids content of microwave-dried beetroots were evaluated. Results: The results showed that refrigeration thawing required the longest thawing time, but the thawing loss rate was the smallest and the rehydration ratio …

Comparative Studies On The Antioxidant And Anti-Inflammatory Activities Of Water Extracts From Eight Kinds Of Foods, Yang Hong, Tang Li, Li Yi, Yuan Hongxia, Li Qingshan

Food and Machinery

Objective： This study aimed to investigate the active ingredients, and their antioxidant and anti-inflammatory activities, as well as the correlation between each other of different food water extracts. Methods： Black rice, black soybean, black sesame, Auricularia auricula, diospyros lotus, black corn, oat and millet were selected for the comparison study of the content of total flavonoids and polyphenols in the aqueous extract, and then the 1-diphenyl-2-picrylhydrazyl (DPPH) scavenging activity, hydroxyl radical scavenging ability and iron ion reduction capacity were determined to evaluate their antioxidant activity. Furthermore, the NO and IL-6 inhibitory activities on Lipopolysaccharides (LPS) induced RAW264.7 cells were …

Optimization Of Extraction And Antioxidant Activities Of Polyphenols From Honey Peachkernel By Ultrasonic-Assisted Enzymolysis Approach, Guo Mingyi, Deng Yan, Wang Tianxin, Zeng Chuantao, Wu Huachuang

Food and Machinery

Objective: This study aimed to explore the potential use of honey peach kernel as a by-product of characteristic agricultural product processing. Methods: The processing technology was optimized based on a single factor test and response surface test by analyzing the effects of enzyme addition amount, ultrasonic temperature, ethanol concentration, and ultrasonic time on the extraction amount of peach kernel polyphenols. Additionally, the antioxidant activities of the extracted polyphenols were studied. Results: The results showed that the optimal extraction parameters were as follows: enzyme adding quantity 5%, ultrasonic temperature 63 ℃, ethanol concentration 60%, and ultrasonic time 37 min. Under this …

Process Optimization And Drying Characteristics Of Instant Noodles Mixed With Potato And Oat, Huo Rui, Kang Lianhe, Zhang Zhifen, Qiao Jianmin, Zhang Yuanyuan

Food and Machinery

Objective: This study aimed to prepare a nutritious instant noodle with regional characteristics. Methods: The process was optimized using whole potato flour, oat flour, and wheat gluten flour as the basic ingredients. The sensory score, breakage rate, rehydration rate, texture characteristics and hot air-drying characteristics were measured. Results: The optimum process parameters for the potato-oatmeal noodles were as follows: 53% water addition, mixing for 10 min, maturing for 40 min and steaming for 12 min. Based on the drying model, the optimum drying conditions were determined to be 40 min at 90 ℃. Conclusion: The potato-oat instant noodles prepared under …

Advances In Biological Activities Of Rape Bee Pollen And Its Development And Utilization, Yan Wenrui, Ji Le, Hu Yingjun, Chen Simin, Zheng Hongxing, Qi Shanshan

Food and Machinery

The research and development value of rape bee pollen, a natural health raw material, is increasing as public awareness of health issues develops. This review introduced the various nutrients and active substances contained in rape bee pollen and summarized the biological activities and pharmacological effects of rape bee pollen in antioxidant, anti-inflammatory, immune enhancement, antibacterial, prostate protection, anti-diabetic complications, anti-tumor, intestinal regulation, and ovarian protection. The application of rapeseed bee pollen in bee products, health care products, food, medicine and cosmetics was discussed. The development direction of rapeseed bee pollen was prospected.

Effect Of Flecainide And Ibutilide Alone And In Combination To Terminate And Prevent Recurrence Of Atrial Fibrillation, Alexander Burashnikov, José M. Di Diego, Bence Patocskai, Debra S. Echt, Luiz Belardinelli, Charles Antzelevitch

Division of Cardiology Faculty Papers

BACKGROUND: There is a need for improved approaches to rhythm control therapy of atrial fibrillation (AF).

METHODS: The effectiveness of flecainide (1.5 µmol/L) and ibutilide (20 nmol/L), alone and in combination, to cardiovert and prevent AF recurrence was studied in canine-isolated coronary-perfused right atrioventricular preparations. We also examined the safety of the combination of flecainide (1.5 µmol/L) and ibutilide (50 nmol/L) using canine left ventricular wedge preparations.

RESULTS: Sustained AF (>1 hour) was inducible in 100%, 60%, 20%, and 0% of atria in the presence of acetylcholine alone, acetylcholine+ibutilide, acetylcholine+flecainide, and acetylcholine+ibutilide+flecainide, respectively. When used alone, flecainide and ibutilide …

Development Of White Matter Fiber Covariance Networks Supports Executive Function In Youth, Joëlle Bagautdinova, Aristeidis Sotiras, Et Al.

2020-Current year OA Pubs

During adolescence, the brain undergoes extensive changes in white matter structure that support cognition. Data-driven approaches applied to cortical surface properties have led the field to understand brain development as a spatially and temporally coordinated mechanism that follows hierarchically organized gradients of change. Although white matter development also appears asynchronous, previous studies have relied largely on anatomical tract-based atlases, precluding a direct assessment of how white matter structure is spatially and temporally coordinated. Harnessing advances in diffusion modeling and machine learning, we identified 14 data-driven patterns of covarying white matter structure in a large sample of youth. Fiber covariance networks …

Cd62l Expression Marks A Functionally Distinct Subset Of Memory B Cells, Christopher H Hanson, Brittany Henry, Pradhnesh Andhare, Frank J Lin, Haley Pak, Jackson S Turner, Lucas J Adams, Tom Liu, Daved H Fremont, Ali H Ellebedy, Brian J Laidlaw

2020-Current year OA Pubs

The memory B cell response consists of phenotypically distinct subsets that differ in their ability to respond upon antigen re-encounter. However, the pathways regulating the development and function of memory B cell subsets are poorly understood. Here, we show that CD62L and CD44 are progressively expressed on mouse memory B cells and identify transcriptionally and functionally distinct memory B cell subsets. Bcl6 is important in regulating memory B cell subset differentiation with overexpression of Bcl6 resulting in impaired CD62L

Mecp2 Represses The Activity Of Topoisomerase Iiβ In Long Neuronal Genes, Sabin A Nettles, Yoshiho Ikeuchi, Katheryn B Lefton, Ladan Abbasi, Alyssa Erickson, Chibueze Agwu, Thomas Papouin, Azad Bonni, Harrison W Gabel

2020-Current year OA Pubs

A unique signature of neurons is the high expression of the longest genes in the genome. These genes have essential neuronal functions, and disruption of their expression has been implicated in neurological disorders. DNA topoisomerases resolve DNA topological constraints and facilitate neuronal long gene expression. Conversely, the Rett syndrome protein, methyl-CpG-binding protein 2 (MeCP2), can transcriptionally repress long genes. How these factors regulate long genes is not well understood, and whether they interact is not known. Here, we identify and map a functional interaction between MeCP2 and topoisomerase IIβ (TOP2β) in mouse neurons. We profile neuronal TOP2β activity genome wide, …

Genomic Loci Influence Patterns Of Structural Covariance In The Human Brain, Junhao Wen, Aristeidis Sotiras, Daniel S Marcus, Pamela Lamontagne, John C Morris, Et Al.

2020-Current year OA Pubs

Normal and pathologic neurobiological processes influence brain morphology in coordinated ways that give rise to patterns of structural covariance (PSC) across brain regions and individuals during brain aging and diseases. The genetic underpinnings of these patterns remain largely unknown. We apply a stochastic multivariate factorization method to a diverse population of 50,699 individuals (12 studies and 130 sites) and derive data-driven, multi-scale PSCs of regional brain size. PSCs were significantly correlated with 915 genomic loci in the discovery set, 617 of which are newly identified, and 72% were independently replicated. Key pathways influencing PSCs involve reelin signaling, apoptosis, neurogenesis, and …

A Distinct Human Cell Type Expressing Mhcii And Rorγt With Dual Characteristics Of Dendritic Cells And Type 3 Innate Lymphoid Cells, Alina Ulezko Antonova, Changxu Fan, Natalia Jaeger, Patrick Fernandes Rodrigues, Simone Brioschi, Tihana Trsan, José L Fachi, Khai M Nguyen, Ryan M Nunley, Ting Wang, Marina Cella, William Vermi, Marco Colonna, Et Al.

2020-Current year OA Pubs

Recent studies have characterized various mouse antigen-presenting cells (APCs) expressing the lymphoid-lineage transcription factor RORγt (Retinoid-related orphan receptor gamma t), which exhibit distinct phenotypic features and are implicated in the induction of peripheral regulatory T cells (Tregs) and immune tolerance to microbiota and self-antigens. These APCs encompass Janus cells and Thetis cell subsets, some of which express the AutoImmune REgulator (AIRE). RORγt

A Novel Multimodal Postoperative Pain Protocol For 1- To 2-Level Open Lumbar Fusions: A Retrospective Cohort Study, Michael Markowitz, Barrett I. Woods, Gregory D. Schroeder, Christopher K Kepler, David Kaye, Mark Kurd, Joshua Armstrong, Alex R. Vaccaro, Kris Radcliff

Rothman Institute Papers

BACKGROUND: There has been increased interest in exploring methods to reduce postoperative pain without opioid medications. In 2015, a multimodal analgesia protocol was used involving the perioperative use of celecoxib, gabapentin, intravenous acetaminophen, lidocaine, and liposomal bupivacaine. Overall, the goal was to reduce the utilization of scheduled opioids in favor of nonopioid pain management.

METHODS: The results of a consecutive series of 1- to 2-level open primary lumbar fusions were compared to a cohort of patients after the implementation the perioperative multimodal pain management protocol. Primary endpoints included patient-reported pain scores and secondary endpoints included length of stay.

RESULTS: There …

A Distinct Human Cell Type Expressing Mhcii And Rorγt With Dual Characteristics Of Dendritic Cells And Type 3 Innate Lymphoid Cells, Alina Ulezko Antonova, Silvia Lonardi, Matilde Monti, Francesco Missale, Changxu Fan, Matthew L Coates, Mattia Bugatti, Natalia Jaeger, Patrick Fernandes Rodrigues, Simone Brioschi, Tihana Trsan, José L Fachi, Khai M Nguyen, Ryan M Nunley, Daniele Moratto, Stefania Zini, Lingjia Kong, Jacques Deguine, Mark E Peeples, Ramnik J Xavier, Menna R Clatworthy, Ting Wang, Marina Cella, William Vermi, Marco Colonna

The Brown Foundation: Institute of Molecular Medicine

Recent studies have characterized various mouse antigen-presenting cells (APCs) expressing the lymphoid-lineage transcription factor RORγt (Retinoid-related orphan receptor gamma t), which exhibit distinct phenotypic features and are implicated in the induction of peripheral regulatory T cells (Tregs) and immune tolerance to microbiota and self-antigens. These APCs encompass Janus cells and Thetis cell subsets, some of which express the AutoImmune REgulator (AIRE). RORγt+ MHCII+ type 3 innate lymphoid cells (ILC3) have also been implicated in the instruction of microbiota-specific Tregs. While RORγt+ APCs have been actively investigated in mice, the identity and function of these cell subsets in humans remain elusive. …

Historic Redlining And Health Outcomes: A Systematic Review, Noa T. Kraus, Sarah Connor, Krista Shoda, Scott Emory Moore, Elliane Irani

Faculty Scholarship

Objective: The purpose of this systematic review was to synthesize the existing literature on the associations between historic redlining and modern-day health outcomes across the lifespan. Method: This review searched PubMed and CINAHL for peer-reviewed, data-based articles examining the relationship between historic redlining and any health outcome. Articles were appraised using the JBI critical appraisal checklist. The results were synthesized using a narrative summary approach. Results: Thirty-six articles were included and focused on various health outcomes, including cardiovascular outcomes, breast cancer incidence and mortality, firearm injury or death, birth-related outcomes, and asthma outcomes. Most of the included articles (n = …

Cambridge Leasing Prop. Llc V. Cachimbo

All Decisions

No abstract provided.

Stabilizing Vimentin Phosphorylation Inhibits Stem-Like Cell Properties And Metastasis Of Hybrid Epithelial/Mesenchymal Carcinomas, Nick A Kuburich, Petra Den Hollander, Maria Castaneda, Mika Pietilä, Ximing Tang, Harsh Batra, Francisco Martínez-Peña, Tanvi H Visal, Tieling Zhou, Breanna R Demestichas, Ritesh V Dontula, Jojo Y Liu, Joanna Joyce Maddela, Reethi S Padmanabhan, Lan Thi Hanh Phi, Matthew J Rosolen, Thiru Sabapathy, Dhiraj Kumar, Filippo G Giancotti, Luke L Lairson, Maria Gabriela Raso, Rama Soundararajan, Sendurai A Mani

Faculty, Staff and Student Publications

Epithelial-mesenchymal transition (EMT) empowers epithelial cells with mesenchymal and stem-like attributes, facilitating metastasis, a leading cause of cancer-related mortality. Hybrid epithelial-mesenchymal (E/M) cells, retaining both epithelial and mesenchymal traits, exhibit heightened metastatic potential and stemness. The mesenchymal intermediate filament, vimentin, is upregulated during EMT, enhancing the resilience and invasiveness of carcinoma cells. The phosphorylation of vimentin is critical to its structure and function. Here, we identify that stabilizing vimentin phosphorylation at serine 56 induces multinucleation, specifically in hybrid E/M cells with stemness properties but not epithelial or mesenchymal cells. Cancer stem-like cells are especially susceptible to vimentin-induced multinucleation relative to …

Impact Of Cumulative Dose Of Brentuximab Vedotin On Outcomes Of Frontline Therapy For Advanced-Stage Hodgkin Lymphoma, Raphael E Steiner, Steven R Hwang, Arushi Khurana, Thomas M Habermann, Narendranath Epperla, Kaitlin Annunzio, Pamela Blair Allen, Katelin Baird, Darina Paulino, Juan Pablo Alderuccio, Izidore S Lossos, Kevin David, Andrew M Evens, Karan Pandya, Steven M Bair, Manali Kamdar, Sheeba Ba Aqeel, Pallawi Torka, Ryan Lynch, Stephen Smith, Lei Feng, Mansoor Noorani, Sairah Ahmed, Ranjit Nair, Francisco Vega, Susan Wu, Penny Fang, Chelsea C Pinnix, Jillian R Gunther, Bouthaina S Dabaja, Hun J Lee

Faculty, Staff and Student Publications

In the pivotal study ECHELON-1, brentuximab vedotin (BV), doxorubicin, vinblastine, and dacarbazine (A + AVD) demonstrated superior efficacy compared with bleomycin + AVD for the treatment of advanced-stage classic Hodgkin lymphoma (cHL). However, there are minimal available data regarding the frequency of dose reductions or omission of BV during curative therapy and the potential impact on patient outcomes. In a real-world analysis, we retrospectively reviewed the characteristics and outcomes of 179 patients with stage III or IV cHL treated with frontline A + AVD from January 2010 to April 2022. Treatment consisted of up to 1.2 mg/kg of BV and …

Microcalcification Crystallography As A Potential Marker Of Dcis Recurrence, Zoey A Miller, Arielle Mueller, Taebeom Kim, Jennifer F Jolivert, Ray Z Ma, Sahil Muthuswami, April Park, Derek B Mcmahon, Kevin T Nead, Ryan M Carey, Robert J Lee

Faculty, Staff and Student Publications

Head and neck squamous cell carcinomas (HNSCCs) have high mortality and significant treatment-related morbidity. It is vital to discover effective, minimally invasive therapies that improve survival and quality of life. Bitter taste receptors (T2Rs) are expressed in HNSCCs, and T2R activation can induce apoptosis. Lidocaine is a local anesthetic that also activates bitter taste receptor 14 (T2R14). Lidocaine has some anti-cancer effects, but the mechanisms are unclear. Here, we find that lidocaine causes intracellular Ca

Effects Of Tea Polysaccharide On The Properties Of Sodium Alginate/Starch/Tea Powder Composite Membrane, Chen Long, Chen Hui, Zhu Jing, Liu Chengyang, Wang Qing

Food and Machinery

Objective: This study aimed to develop a green and environment-friendly sodium alginate/starch/tea powder composite membrane. Methods: Tea polysaccharides with different mass fractions were added to the sodium alginate/starch/tea powder composite film to investigate the influence of tea polysaccharides on the properties of sodium alginate/starch/tea powder composite film. Therefore, full infrared barrier, color difference, water solubility, water vapor permeability, tensile strength, elongation at break, thickness, water content, free radical clearance and bacteriostasis were measured. Results: A strong interaction between tea polysaccharides and sodium alginate were found. The composite film with tea polysaccharide content of 5% exhibited the best comprehensive performance. The …