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Search Results: 1 - 10 of 10899 matches for " <i>Auricularia polytricha</i><i> "
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Steamed Wheat Breads with Auricularia polytricha Powder as a Functional Food Product  [PDF]
Fengjuan Jia, Yueming Wang, Zhiqing Gong, Wenjia Cui, Yansheng Wang, Wenliang Wang
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105598
Abstract:
Auricularia polytricha is a functional food material that contains numerous bioactive health-promoting compounds. This study demonstrates the novel application of A. polytricha powder (APP) in steamed bread production. Moreover, this work aimed to determine the influence of the direct addition of APP on the sensory, textural, physical, and in vitro antioxidant properties of steamed breads. Steamed breads enriched with 5% APP had higher consumer acceptability than those enriched with 2.5%, 5%, 7.5% and 10% APP. In addition, supplementation with APP significantly enhanced the antioxidant activity of steamed breads during digestion in vitro. Our study suggests that A. polytricha is a valuable source of active compounds for steamed wheat breads.
Selenium Content and Antioxidant Potential of Some Edible Wild Mushrooms from Bandundu Area, DR Congo  [PDF]
Marina Kisuba Kabuyi, Paulin Mutwale Kapepula, Jimmy Kabeya Kabengele, Bénédicte Moni, Gisèle Makengo, Patricia Mbombo Mungitshi, Adam Tujibikila Mukuta, Clement Mbadiko Mutunda, Simon Dibaluka Mpulusu, Jean Paul Koto-Te-Nyiwa Ngbolua, Nadège Ngombe Kabamba, Théophile Mbemba Fundu
Natural Resources (NR) , 2017, DOI: 10.4236/nr.2017.82008
Abstract: Nutrition is an important aspect of public health because it is linked to many significant diseases and health problems. This work is part of the promotion of traditional foods from the Democratic Republic of Congo in general and in the province of Bandundu, in particular by assessing the selenium content and the antioxidant capacity of wild edible mushrooms. Methanolic extracts from selected mushrooms were characterized for their chemical fingerprint by TLC and their in vitro antioxidant activities using ABTS, DPPH assays. Phytochemical screening revealed the presence of alkaloids, free amines, steroids and terpenes in all species. However, Auricularia delicata and Pleurotus tuberregium contain flavonoids. All extracts displayed a good radical-scavenging activity at the concentration range 1 - 300 μg/mL in the following order: Auricularia delicata > Lentinus cf cladopus > Pleurotus tuberregium > Marasmius buzungolo > Schizophillum commune. Studied mushrooms showed the interest quantity of selenium and L. cf cladodus had the highest concentration. Moderate selenium content of these wild mushrooms associated with their important antioxidant activities could provide health benefits to Bandundu’s populations in protecting against oxidative damage under different conditions including konzo.
Detection of Escherichia coli and Harmful Enteric Bacterial Pathogens in Domestic Hand-Dug Wells in the Cuvelai Etosha Basin of Namibia  [PDF]
B. McBenedict, H. Wanke, B. M. Hang’ombe, P. M. Chimwamurombe
Advances in Microbiology (AiM) , 2018, DOI: 10.4236/aim.2018.84020
Abstract: The Cuvelai Etosha Basin of Namibia is characterised by complex aquifer systems with multi-layered aquifers and various water qualities. Some parts of the basin have been covered with a pipeline system that supplies purified surface water from the Kunene River. Locations that lack a pipeline system utilise hand-dug wells as a source of drinking water. These wells draw water from shallow perched aquifers and are not protected from surface contamination nor is the water quality monitored. Sanitised water supply is relevant for the growth and development of societies and is a priority of the United Nations Millennium Development Goals. A bacteriological water quality study aimed at investigating the presence and seasonal variation of; Citrobacter, Escherichia, Klebsiella, Enterobacter, Proteus, Salmonella, Shigella, and Pseudomonas species was conducted on 44 hand-dug wells in the Ohangwena and Omusati regions of the Cuvelai Etosha Basin. Samples were collected from both the wet and dry seasons. Results disclosed the presence of Salmonella, Shigella, Citrobacter, Escherichia, Klebsiella, Enterobacter, Proteus, and Pseudomonas species. Chi-square confirmed a significant seasonal variation in Salmonella (P < 0.05) and Shigella (P < 0.05) species, and no significant seasonal variation in Citrobacter (P > 0.05), Escherichia (P > 0.05), Klebsiella (P > 0.05), Entero-bacter (P > 0.05), Proteus (P > 0.05) and Pseudomonas (P > 0.05) species. Water from these hand-dug wells is not safe for drinking unless it is subjected to appropriate treatment. It is recommended that hand-dug wells should be properly constructed at safe distances from contaminating structures such as pit latrines and routinely assessed for pathogens, and the water should be sanitized prior to consumption.
Prevalence of Hydatid Cysts in Slaughtered Animals from Different Areas of Libya  [PDF]
Layla O. Elmajdoub, Wahab A. Rahman
Open Journal of Veterinary Medicine (OJVM) , 2015, DOI: 10.4236/ojvm.2015.51001
Abstract: The present study reports on the infection rates of hydatid cysts in both sexes and different age groups of sheep, camels and cattle from government abattoirs in different parts of Libya. An infection rate of 10.06% was recovered among 32,971 all ruminants (sheep, camels and cattle). Out 25314 of sheep, 2659 (10.52%) were infected. Out 7496 of camels, 940 (12.54%) were infected. Out 161 of cattle, 17 (10.56%) were infected. As regards to the infected organs, liver was seen to be the most commonly infected organ in sheep and cattle (46.03%; 52.94%, respectively), but in camels, it was the lung (55.21%). The fertility rates of hydatid cysts were 80% in sheep, 84% in camels and 0% in cattle. In sheep, the fertility rate of liver hydatid cysts was higher than that in other organs (53.85%), but in camels, the fertility rate in the lung was higher than that of other infected organs (66.7%). Thus, the incidence of echinococcosis in slaughtered livestock is noticeably high and denotes some hazards in control measures in Libyan abattoirs.
Purinergic P2Y Receptors Are Involved in Xenopus Head Formation  [PDF]
Ayano Harata, Haruka Nishida, Akiha Nishihara, Chikara Hashimoto
CellBio (CellBio) , 2016, DOI: 10.4236/cellbio.2016.54004
Abstract: P2Y receptors belong to the family of G protein-coupled receptors and are activated by nucleotides in the extracellular space. We showed that Xenopus P2Y1 and P2Y11 were expressed in the dorsal marginal zone from early gastrula stage and enriched in the central nervous system from neurula stages. They were expressed in the prospective head region during early development. Knockdown of P2Y1 and P2Y11 caused head malformation, such as small eyes, brain atrophy, and defect in cartilage tissues, as well as reduced expression of neural, placode, and neural crest markers. Furthermore, the expression of neural plate and epidermal markers was affected by P2Y1 or P2Y11 depletion at early neurula stage, suggesting that P2Y1 or P2Y11 might be required for the neural induction. Our findings suggested that P2Y receptors might be involved in distinguishing between neural and non-neural fates. The results also suggested that P2Y1 or P2Y11 could play a role in neural induction and/or maintenance of neural tissues in the head formation processes.
Prevalence of Helicobacter pylori vacA, cagA, dupA and oipA Genotypes in Patients with Gastric Disease  [PDF]
Mayara Luciana Sallas, Jessica Lima Melchiades, Luanna Munhoz Zabaglia, Juliana Ribeiro do Prado Moreno, Wilson Aparecido Orcini, Elizabeth Suchi Chen, Marilia de Arruda Cardoso Smith, Spencer Luiz Marques Pay?o, Lucas Trevizani Rasmussen
Advances in Microbiology (AiM) , 2017, DOI: 10.4236/aim.2017.71001
Abstract: Gastric diseases such as chronic gastritis and gastric cancer are most commonly caused by virulence factors of Helicobacter pylori (H. pylori), such as the vacA, cagA, dupA and oipA genes. Therefore, this study investigated the prevalence and the combination of these virulence factors from patients with gastric diseases. The endoscopic biopsies were obtained from 516 patients with gastric symptoms, 101 of which were from patients with normal gastric tissue, 365 of which were from patients with chronic gastritis, and 50 of which were from patients with gastric cancer. H. pylori and the virulence factors were detected by PCR. The oipA gene exhibited an increased risk for chronic gastritis (p = 0.0296), and the vacA gene demonstrated a risk for gastric cancer from chronic gastritis (p = 0.0002). Based on the combination of the virulence factors, cagA, vacA, dupA and oipA genes exhibited a high prevalence in patients with chronic gastritis and gastric cancer. The cagA+/dupA+ genotype demonstrated a significant correlation in patients with normal gastric mucosa (p = 0.0278). In the chronic gastritis group, a significant association was observed between the cagA+ and the vacA s1m1 genotypes (p < 0.0001), the cagA+/dupA+ genotypes (p = 0.0183), the dupA+/oipA+ genotypes (p < 0.0001), and the dupA+/vacA s1m1 genotypes (p = 0.0008) genotypes. This study revealed a high prevalence of the combination of cagA, vacA, dupA, and oipA genes, which contributed to the risk of developing gastroduodenal diseases. Furthermore, this is the first study to reveal a high prevalence of the oipA gene in H. pylori isolates in Brazil.
FEATURES AND INNOVATION POLICY CHALLENGES OF CIS ОСОБЕННОСТИ И ПРОБЛЕМЫ ИННОВАЦИОННОЙ ПОЛИТИКИ СТРАН СНГ ОСОБЛИВОСТ ТА ПРОБЛЕМИ ННОВАЦ ЙНО ПОЛ ТИКИ КРА Н СНД
В.С. БУДК?Н
Strategy of Ukraine : Economics, Sociology, Law , 2011,
Abstract: The article analyzes the main trends of the innovation policy of the CIS countries, the peculiarities of its implementation for, during and after the economic crisis of 2008 – 2009. Defined reasons for the lack of largescale innovation activities in most countries of the region. В статье проанализированы основные направления инновационной политики стран СНГ, особенности ее проведения до, во время и после экономического кризиса 2008-2009 годов. Определены причины отсутствия масштабных инновационных мероприятий в большинстве государств этого региона. В статт проанал зован основн напрямки нновац йно пол тики кра н СНД, особливост проведення до, п д час та п сля економ чно кризи 2008-2009 рок в. Визначен причини в дсутност масштабних нновац йних заход в у б льшост держав цього рег ону.
Archimedes’ to Eratosthenes in the Palimpsest and Archimedes in Heron’s Metrikon  [PDF]
Giuseppe Boscarino
Advances in Historical Studies (AHS) , 2015, DOI: 10.4236/ahs.2015.45025
Abstract: It is argued that even with some new readings made by the publication of the Letter to Eratosthenes in the Archimedes Palimpsest, with the wonderful discovery of his so-called “mechanical method” (a certain way of theorizing in mathematical things by means of mechanical entities) at the beginning of the twentieth century, some important historical-philological and philosophicalepistemological issues still remain, which have already discussed in part in my writings. We produce some important testimonies taken from Metrikon by Heron of Alexandria in favour of our translations and interpretations of Archimedes’ lexicon, not without placing under investigation at the same time the personality and the importance of Hero in the history of philosophical, scientific and technological Greek-Hellenistic thought in line with Archimedes and the tradition of Italic thought of science (The quotations of the Greek texts of Archimedes, Heron and Pappus are my translations).
Preparation and Characterization of Holmium-Beta-Cyclodextrin Complex  [PDF]
Ana Rosa Rojas-Mena, Hilario López-González, Alberto Rojas-Hernández
Advances in Materials Physics and Chemistry (AMPC) , 2015, DOI: 10.4236/ampc.2015.53011
Abstract: The purpose of this study was to prepare and characterize of holmium-beta-cyclodextrin complex (Ho-β-CD) in order to increase the solubility and stability of Holmium. To achieve this goal, Ho-β-CD complex was prepared by evaporation method of holmium and beta cyclodextrin solutions in a proportion (1:1) and (1:3), respectively. Infrared (IR) and Raman spectroscopy, X-Ray Diffraction were performed to identify the complex. Morphology of the Ho, β-CD, and Ho-β-CD were studied using Scanning Electron Microscopy (SEM).
Soybean Seed Co-Inoculation with Bradyrhizobium spp. and Azospirillum brasilense: A New Biotechnological Tool to Improve Yield and Sustainability  [PDF]
Mariangela Hungria, Marco Antonio Nogueira, Ricardo Silva Araujo
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.66087
Abstract: Legume nodulation by rhizobia can supply crops with nitrogen and reduce environmental impacts caused by chemical fertilization. The soybean crop in Brazil is an impressive example of how biological N2 fixation can be employed with a plant species of high economic value. However, the development of more productive cultivars, along with the increasing global climatic changes demand agricultural practices to become more productive and yet more environmentally friendly. Plant growth-promoting rhizobacteria (PGPR) are highly beneficial to agriculture worldwide, acting in plant nutrition, protection, and growth stimulation. Azospirillum is, certainly, the most employed PGPR in the world, but little is known about its interaction with rhizobia, when both are applied to legume seeds. We have evaluated the co-inoculation of bradyrhizobia and azospirilla on soybean seeds under different soil and climate conditions in Brazil. Our results demonstrated that co-inoculation is efficient and beneficial to the crop, and promotes yield increases without adding any chemical N fertilizers even in soils where established populations of soybean bradyrhizobia exist. The strategy of co-inoculation thus represents a new biotechnological tool to improve soybean yield without adding any chemical N fertilizers, thus contributing to current practices of sustainability in agriculture.
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