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Raffaella Boggia, Federica Turrini, Carla Villa, Chiara Lacapra, Paola Zunin, Brunella Parodi
The aim of this study was to investigate the potential of retrieving polyphenolic antioxidants directly from wet pomegranate marcs: the fresh by-products obtained after pomegranate juice processing. These by-products mainly consist of internal membranes (endocarp) and aril residues. Even if they are still edible, they are usually discharged during juice production and, thus, they represent a great challenge in an eco-sustainable industrial context. Green technologies, such as ultrasound assisted extraction (UAE) and microwave assisted extraction (MAE), have been employed to convert these organic residues into recycled products with high added value...
October 18, 2016: Pharmaceuticals
Amma Amponsah, Balunkeswar Nayak
The extraction of soy proteins for soy allergen detections is conventionally achieved with PBS buffer for at least 2 h at room temperature or 4 °C. This method has been reported to be inefficient due to time consumption and inadequate protein extraction resulting in false negative allergen detection and mislabeling of foods containing allergenic proteins. This study investigated the application of microwave (MAE) and ultrasound assisted extraction (UAE) techniques to extract and improve recovery of allergens from various soy matrices...
October 14, 2016: Journal of Food Science
Eddie T T Tan, Ken W L Yong, Siew Hoon Wong, Bruce R D'Arcy, Rafat Al Jassim, James Joseph De Voss, Mary T Fletcher
Ingestion of indospicine-contaminated camel and horse meat has caused fatal liver injury to dogs in Australia, and it is currently not known if such contaminated meat may pose a human health risk upon dietary exposure. To date, indospicine related research has tended to focus on analytical aspects, with little information on post-harvest management of indospicine-contaminated meat. In this study, indospicine degradation was investigated both in aqueous solution and also in contaminated meat, under a range of conditions...
October 14, 2016: Journal of Agricultural and Food Chemistry
Yukiyoshi Hyo, Kenji Fukutsuji, Hisaki Fukushima, Tamotsu Harada
Cases of thermal burns of the larynx in infants and in patients with mental illness have been reported, but those in older people are rare. We report two cases of thermal burns of the larynx in older people caused by ingestion of microwave-heated food (meat and potato stew or a bean-jam filled bun). Both patients were users of full dentures. Conservative therapy was effective in one patient, while tracheotomy was performed in the other patient at the time of the initial examination. Hot food is expelled from the mouth as a reflective response, preventing thermal burns of the larynx...
October 6, 2016: Auris, Nasus, Larynx
Derong Shang, Yanfang Zhao, Yuxiu Zhai, Jinsong Ning, Delin Duan, Yongdong Zhou
A solid sampling method for the determination of lead in foods (including grains, vegetables and seafoods) using electrothermal vaporization atomic fluorescence spectrometry was established. The method introduced samples using electrothermal vaporization by quartz furnace and used on-line ashing and vaporization to remove matrix interferences for the specific trap of lead. It was proven by the certified reference material (CRM) and the recovery rate of the standards that the electrothermal vaporization was stable and there was no effect for sampling difference...
2016: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
Jayanta Kumar Patra, Kwang-Hyun Baek
BACKGROUND: Listeria monocytogenes is one of the most virulent types of bacteria and causes severe foodborne illness, such as listeriosis. Because this pathogen has become resistant to sanitizers and other disinfectants that are used to clean utensils and surfaces during food processing, it poses a serious threat to the food industry. OBJECTIVES: The study was conducted to determine the anti-listerial potential of essential oils extracted from four edible seaweeds against L...
July 2016: Jundishapur Journal of Microbiology
Jing Sun, Ji Zhang, Yanli Zhao, Yuanzhong Wang, Wanyi Li
Concentrations of 11 elements (As, Ba, Cd, Cu, Fe, Mn, Ni, Pb, Se, Sr, and Zn) from the medicinal and edible mushroom Wolfiporia extensa were determined using atomic fluorescence spectrometry (for As and Se) and inductively coupled plasma atomic emission spectrometry (for Ba, Cd, Cu, Fe, Mn, Ni, Pb, Sr, and Zn). All the samples were collected from 6 regions of Yuxi in Yunnan Province in the southwest of China and were digested with concentrated nitric acid and hydrogen peroxide in a microwave system. The recovery rates of standard addition ranged from 98...
2016: International Journal of Medicinal Mushrooms
Luisa Torri, Alessandra Frati, Paolino Ninfali, Stefano Mantegna, Giancarlo Cravotto, Gabriella Morini
BACKGROUND: The demand for zero and reduced-sugar food products containing cocoa is expanding continuously. The study has been designed to evaluate the feasibility of producing high-quality chocolate sweetened with a crude extract of Stevia rebaudiana (Bertoni) prepared by a green microwave-assisted water-steam extraction procedure. Seven approximately isosweet chocolate formulations were developed mixing cocoa paste, sucrose, commercial stevioside, crude green extract and maltitol in different proportions...
September 20, 2016: Journal of the Science of Food and Agriculture
Muhammad Imran, Muhammad Nadeem, Muhammad Faisal Manzoor, Amna Javed, Zafar Ali, Muhammad Nadeem Akhtar, Muhammad Ali, Yasir Hussain
BACKGROUND: Chia (Salvia hispanica L.) seeds have been described as a good source of lipids, protein, dietary fiber, polyphenolic compounds and omega-3 polyunsaturated fatty acids. The consumption of chia seed oil helps to improve biological markers related to metabolic syndrome diseases. The oil yield and fatty acids composition of chia oil is affected by several factors such as pre-treatment method and size reduction practices. Therefore, the main mandate of present investigate was to study the effect of different seed pre-treatments on yield, fatty acids composition and sensory acceptability of chia oil at different storage intervals and conditions...
2016: Lipids in Health and Disease
Zhili Liang, Lin Li, Haiping Qi, Zhenbo Xu Xia Zhang, Bing Li
Pyrraline, an advanced glycation end product (AGE), is related to some chronic diseases and can be employed as an indicator for heat damage in food processing. In this study, the impact of changing the reactant concentration and ratio on the kinetic parameters describing peptide-bound pyrraline (pep-pyr) formation and elimination was evaluated in the Lys-Gly/glucose model systems, with microwave heating treatment ranging from 120 to 200 °C. The maximum pep-pyr concentration increased as follows: 200 °C ˂ 180 °C ˂ 160 °C ˂ 120 °C ˂ 140 °C...
October 2016: Journal of Food Science
Julie A Albrecht, Julie Garden-Robinson, Carol Schwarz, Kayla Colgrove
No abstract text is available yet for this article.
September 2016: Journal of Nutrition Education and Behavior
Carlos Mário Martins Silveira, Ana Vládia Bandeira Moreira, Hércia Stampini Duarte Martino, Renata Sena Gomide, Soraia Silva Pinheiro, Ceres Mattos Della Lucia, Helena Maria Pinheiro-Sant'ana
Rice fortification offers great potential to deliver essential micronutrients to a large part of the world population. However, high temperatures required for cooking rice a re deleterious to thermally labile micronutrients. This study evaluated the content and stability of thiamin and folic acid in fortified rice after different cooking methods (stir-frying, boiling, cooking in a microwave oven and boiling in a Food Service). The analyses were performed by High Performance Liquid Chromatography (HPLC). The fortified rice showed the highest thiamin content (0...
September 4, 2016: International Journal of Food Sciences and Nutrition
Masaya Takahashi, Shoichiro Taniuchi, Kazuhiko Soejima, Yasuko Hatano, Sohsaku Yamanouchi, Kazuanri Kaneko
BACKGROUND: Several studies have reported that oral immunotherapy (OIT) is effective for children with cow's milk (CM) allergy. These studies reported the efficacy of OIT in terms of desensitization, but did not describe sustained unresponsiveness to CM. The aim of this study was to evaluate the efficacy of the OIT protocol using microwave heated cow's milk (MH-CM) in terms of 2-weeks-sustained unresponsiveness (2-weeks-SU) and safety. METHODS: Forty-eight children were enrolled in this study...
2016: Allergy, Asthma, and Clinical Immunology
Abderrahmane Djouahri, Saka Boualem, Lynda Boudarene, Aoumeur Baaliouamer
In the present work, the hydrodistillation (HD) and microwave-assisted hydrodistillation (MAHD) kinetics of essential oil extracted from Tetraclinis articulata (Vahl) Masters wood was conducted, in order to assess the impact of extraction time and technique on chemical composition and biological activities. GC and GC-MS analyses showed significant differences between the extracted essential oils, where each family class or component presents a specific kinetic according to extraction time, technique and especially for the major components: camphene, linalool, cedrol, carvacrol and α-acorenol...
August 27, 2016: Chemistry & Biodiversity
Marie-Charlotte Chabert, Jeanne Perrin, Julie Berbis, Florence Bretelle, Sébastien Adnot, Blandine Courbiere
OBJECTIVE: The aim of this study was to evaluate the information pregnant women received regarding possible exposures to five recognized reprotoxic agents during their pregnancy. STUDY DESIGN: A cohort study was conducted using two postnatal units in France. Women hospitalized in postnatal units were requested to complete a self-administered two part questionnaire. The first part gathered information about the patient's socio-professional level and the type of pregnancy follow-up...
October 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Adriano Mollica, Marcello Locatelli, Giorgia Macedonio, Simone Carradori, Anatoly P Sobolev, Roberto F De Salvador, Simona M Monti, Martina Buonanno, Gokhan Zengin, Andrea Angeli, Claudiu T Supuran
The multi-component fingerprint and the biological evaluation of plant-derived material are indispensable for the pharmaceutical field, in food quality control procedures, and in all plant-based products. We investigated the quantitative content of biologically active compounds (anthocyanins and chlorogenic acid) of microwave-assisted blueberry extracts from 14 different Italian cultivars, using validated high-performance liquid chromatography-photodiode array detector (HPLC-PDA) method and routinely instrument configuration...
August 10, 2016: Journal of Enzyme Inhibition and Medicinal Chemistry
Ti Zhang, Shuang Cai, Wai Chee Forrest, Eva Mohr, Qiuhong Yang, M Laird Forrest
Cisplatin, a platinum chemotherapeutic, is one of the most commonly used chemotherapeutic agents for many solid tumors. In this work, we developed and validated an inductively coupled plasma mass spectrometry (ICP-MS) method for quantitative determination of platinum levels in rat urine, plasma, and tissue matrices including liver, brain, lungs, kidney, muscle, heart, spleen, bladder, and lymph nodes. The tissues were processed using a microwave accelerated reaction system (MARS) system prior to analysis on an Agilent 7500 ICP-MS...
September 2016: Applied Spectroscopy
Mi-Kyeong Choi, Mi-Hyun Kim
Accumulated data suggests a positive effect of silicon on bone health; however, limited research exists on the silicon content of foods. To further the understanding of the relationship between dietary silicon intake and bone health, a food composition database of commonly consumed foods in Korea is required. For quantitative data on the intake levels of silicon, we analyzed the silicon content of 365 food items commonly consumed in Korea using inductively coupled plasma-atomic emission spectrometry following microwave-assisted digestion...
August 15, 2016: Biological Trace Element Research
Vivien F Taylor, Brian P Jackson
A survey of arsenic (As) concentrations and speciation was conducted on 10 species of seaweed from commercial harvesters and from collection at two sites in New England. Concentrations of As ranged from 4 to 106 mg/kg, mostly in the form of arsenosugars, with the distribution of arsenosugar analogs varying between taxa. In brown algae, As levels were correlated with phosphate concentrations, and arsenosugar speciation reflected differences in sulfur and phosphate concentrations between taxa. Several samples of the brown algae species Laminaria digitata contained significant levels of inorganic As (2...
November 2016: Chemosphere
Kit-Leong Cheong, Lan-Ying Wang, Ding-Tao Wu, De-Jun Hu, Jing Zhao, Shao-Ping Li
Cordyceps sinensis is a well-known tonic food with broad medicinal properties. The aim of the present study was to investigate the optimization of microwave-assisted extraction (MAE) and characterize chemical structures and chain conformation of polysaccharides from a novel C. sinensis fungus UM01. Ion-exchange and gel filtration chromatography were used to purify the polysaccharides. The chemical structure of purified polysaccharide was determined through gas chromatography-mass spectrometry. Moreover, high performance size exclusion chromatography combined with refractive index detector and multiangle laser light scattering were conducted to analyze the molecular weight (Mw ) and chain conformation of purified polysaccharide...
September 2016: Journal of Food Science
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