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https://www.readbyqxmd.com/read/28764096/changes-in-anthocyanidin-levels-during-the-maturation-of-color-fleshed-potato-solanum-tuberosum-l-tubers
#1
Miloslav Šulc, Zora Kotíková, Luboš Paznocht, Vladimír Pivec, Karel Hamouz, Jaromír Lachman
Certain potato cultivars are capable of producing anthocyanin pigments in the potato skin and flesh and those pigments have been shown, together with other phytochemicals, to promote good health. Six common anthocyanidins (cyanidin, delphinidin, petunidin, pelargonidin, malvidin and peonidin) were analyzed weekly for 15weeks in red- and purple-fleshed potato cultivars (Red Emma, Königspurpur, Valfi and Blaue de la Mancha) grown in field conditions using a validated LC-(+ESI)MS/MS method. Pelargonidin was the major type detected in red-fleshed cultivars whereas petunidin was the major type detected in the purple ones...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28763254/decolorization-of-textile-dyes-in-an-air-lift-bioreactor-inoculated-with-bjerkandera-adusta-obr105
#2
Hong Sodaneath, Jung-In Lee, Seung-Ok Yang, Hyekyeng Jung, Hee Wook Ryu, Kyung-Suk Cho
A new decolorizing white-rot fungus, OBR105, was isolated from Mount Odae in South Korea and identified by the morphological characterization of its fruit body and spores and partial 18s rDNA sequences. The ligninolytic enzyme activity of OBR105 was studied to characterize their decolorizing mechanism using a spectrophotometric enzyme assay. For the evaluation of the decolorization capacity of OBR105, the isolate was incubated in an erlenmeyer flask and in an airlifte bioreator with potato dextrose broth (PDB) medium supplemented with each dye...
August 1, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28760998/engineered-gray-mold-resistance-antioxidant-capacity-and-pigmentation-in-betalain-producing-crops-and-ornamentals
#3
Guy Polturak, Noam Grossman, David Vela-Corcia, Yonghui Dong, Adi Nudel, Margarita Pliner, Maggie Levy, Ilana Rogachev, Asaph Aharoni
Betalains are tyrosine-derived red-violet and yellow plant pigments known for their antioxidant activity, health-promoting properties, and wide use as food colorants and dietary supplements. By coexpressing three genes of the recently elucidated betalain biosynthetic pathway, we demonstrate the heterologous production of these pigments in a variety of plants, including three major food crops: tomato, potato, and eggplant, and the economically important ornamental petunia. Combinatorial expression of betalain-related genes also allowed the engineering of tobacco plants and cell cultures to produce a palette of unique colors...
July 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28758684/delivery-of-cytoplasmic-and-apoplastic-effectors-from-phytophthora-infestans-haustoria-by-distinct-secretion-pathways
#4
Shumei Wang, Petra C Boevink, Lydia Welsh, Ruofang Zhang, Stephen C Whisson, Paul R J Birch
The potato blight pathogen Phytophthora infestans secretes effector proteins that are delivered inside (cytoplasmic) or can act outside (apoplastic) plant cells to neutralize host immunity. Little is known about how and where effectors are secreted during infection, yet such knowledge is essential to understand and combat crop disease. We used transient Agrobacterium tumefaciens-mediated in planta expression, transformation of P. infestans with fluorescent protein fusions and confocal microscopy to investigate delivery of effectors to plant cells during infection...
July 31, 2017: New Phytologist
https://www.readbyqxmd.com/read/28693237/inhibitory-effects-of-delphinidin-on-the-proliferation-of-ovarian-cancer-cells-via-pi3k-akt-and-erk-1-2-mapk-signal-transduction
#5
Whasun Lim, Gwonhwa Song
Delphinidin is a member of the anthocyanidin family and is a natural pigment in red cabbage, berries, sweet potatoes and grapes. It possesses nutraceutical properties against various chronic diseases and types of cancer. However, little is known about its preventative effects on epithelial ovarian cancer, a disease that is associated with a low survival rate, a poor prognosis and a high rate of recurrence. The results of the present study demonstrated that the proliferation of SKOV3 cells decreased in a dose-dependent manner in response to treatment with delphinidin, and the phosphorylation of carcinogenic protein kinases associated with the progression of epithelial ovarian cancer was affected by delphinidin treatment...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28664422/metabolite-profiling-of-red-and-blue-potatoes-revealed-cultivar-and-tissue-specific-patterns-for-anthocyanins-and-other-polyphenols
#6
Anne Oertel, Andrea Matros, Anja Hartmann, Panagiotis Arapitsas, Klaus J Dehmer, Stefan Martens, Hans-Peter Mock
Metabolite profiling of tuber flesh and peel for selected colored potato varieties revealed cultivar and tissue specific profiles of anthocyanins and other polyphenols with variations in composition and concentration. Starchy tubers of Solanum tuberosum are a staple crop and food in many countries. Among cultivated potato varieties a huge biodiversity exists, including an increasing number of red and purple colored cultivars. This coloration relates to the accumulation of anthocyanins and is supposed to offer nutritional benefits possibly associated with the antioxidative capacity of anthocyanins...
August 2017: Planta
https://www.readbyqxmd.com/read/28653743/genetic-diversity-and-pectinolytic-activity-of-epiphytic-yeasts-from-grape-carposphere
#7
M Cilião Filho, M B D Bertéli, J S Valle, L D Paccola-Meirelles, G A Linde, F G Barcellos, N B Colauto
The genetic diversity of epiphytic yeasts from grape carposphere is susceptible to environmental variations that determine the predominant carposphere microbiota. Understanding the diversity of yeasts that inhabit grape carposphere in different environments and their pectinolytic activity is a way to understand the biotechnological potential that surrounds us and help improve winemaking. Therefore, this study aimed to evaluate the pectinolytic activity and characterize the genetic diversity of isolated epiphytic yeasts from grape carposphere...
June 20, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28554635/anthocyanins-from-purple-sweet-potato-ipomoea-batatas-l-lam-and-their-color-modulation-by-the-addition-of-phenolic-acids-and-food-grade-phenolic-plant-extracts
#8
Claudia C Gras, Nicole Nemetz, Reinhold Carle, Ralf M Schweiggert
Anthocyanin profiles and contents of three purple sweet potato provenances were investigated by HPLC-DAD-MS(n). In contrast to widely uniform profiles, the contents of total (558-2477mg/100gDM) and individual anthocyanins varied widely. Furthermore, quantitative and qualitative effects of intermolecular co-pigmentation were studied by adding chlorogenic and rosmarinic acids, and food-grade phenolic apple and rosemary extracts at various dosages to a diluted purple sweet potato concentrate at pH 0.9, 2.6, 3...
November 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28504180/the-glycogen-of-galdieria-sulphuraria-as-alternative-to-starch-for-the-production-of-slowly-digestible-and-resistant-glucose-polymers
#9
Marta Martinez-Garcia, Akrivi Kormpa, Marc J E C van der Maarel
Highly branched glucose polymers produced from starch are applied in various products, such as peritoneal dialysis solutions and sports drinks. Due to its insoluble, granular nature, the use of native starch as substrate requires an energy consuming pre-treatment to achieve solubilization at the expense of process costs. Glycogen, like starch, is also a natural glucose polymer that shows more favorable features, since it is readily soluble in cold water and more accessible by enzymes. The extremophilic red microalga Galdieria sulphuraria accumulates large amounts of a small, highly branched glycogen that could represent a good alternative to starch as substrate for the production of highly branched glucose polymers...
August 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28466848/dietary-pattern-derived-by-reduced-rank-regression-and-depressive-symptoms-in-a-multi-ethnic-population-the-helius-study
#10
E Vermeulen, K Stronks, M Visser, I A Brouwer, M B Snijder, R J T Mocking, E M Derks, A H Schene, M Nicolaou
BACKGROUND/OBJECTIVES: To investigate the association of dietary patterns derived by reduced rank regression (RRR) with depressive symptoms in a multi-ethnic population. SUBJECTS/METHODS: Cross-sectional data from the HELIUS study were used. In total, 4967 men and women (18-70 years) of Dutch, South-Asian Surinamese, African Surinamese, Turkish and Moroccan origin living in the Netherlands were included. Diet was measured using ethnic-specific food frequency questionnaires...
August 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28463583/decolorization-of-acid-disperse-and-reactive-dyes-by-trametes-versicolor-cbr43
#11
Seung-Ok Yang, Hong Sodaneath, Jung-In Lee, Hyekyeng Jung, Jin-Hee Choi, Hee Wook Ryu, Kyung-Suk Cho
The mycoremediation has been considered as a promising method for decolorizing dye wastewater. To explore new bioresource for mycoremediation, a new white-rot fungus that could decolorize various dyes commonly used in textile industries was isolated, and its ligninolytic enzyme activity and decolorization capacity were characterized. The isolated CBR43 was identified as Trametes versicolor based on the morphological properties of its fruit body and spores, as well as through partial 18S rDNA gene sequences...
July 29, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28440966/lead-levels-in-vegetables-from-artisanal-mining-sites-of-dilimi-river-bukuru-and-barkin-ladi-north-central-nigeria-cancer-and-non-cancer-risk-assessment
#12
Orish Ebere Orisakwe, Emmanuel Ayuba Dagur, Herbert Orji Chidi Mbagwu, Nnaemeka Arinze Udowelle
Lead (Pb) contamination of foods and especially of frequently consumed vegetables is a growing public health concern worldwide. Although levels of exposure in developed countries have declined over the past decades, the same cannot be said of developing countries. Health risk assessment has increasingly been employed to determine the potential hazard of heavy metal exposure to humans. In this study vegetable samples (tomatoes, red pepper, brown beans, lettuce, cabbage, Irish potatoes, onions, green beans and carrot), soil samples, irrigation water and sediment samples were collected from the Dilimi River, Bukuru and Barkin Ladi communities in north central Nigeria and analyzed for Pb content using atomic absorption spectroscopy...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28431261/dietary-patterns-and-depression-risk-a-meta-analysis
#13
REVIEW
Ye Li, Mei-Rong Lv, Yan-Jin Wei, Ling Sun, Ji-Xiang Zhang, Huai-Guo Zhang, Bin Li
Although some studies have reported potential associations of dietary patterns with depression risk, a consistent perspective hasn't been estimated to date. Therefore, we conducted this meta-analysis to evaluate the relation between dietary patterns and the risk of depression. A literature research was conducted searching MEDLINE and EMBASE databases up to September 2016. In total, 21 studies from ten countries met the inclusion criteria and were included in the present meta-analysis. A dietary pattern characterized by a high intakes of fruit, vegetables, whole grain, fish, olive oil, low-fat dairy and antioxidants and low intakes of animal foods was apparently associated with a decreased risk of depression...
July 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28428782/a-recombinant-potato-virus-y-infectious-clone-tagged-with-the-rosea1-visual-marker-pvy-ros1-facilitates-the-analysis-of-viral-infectivity-and-allows-the-production-of-large-amounts-of-anthocyanins-in-plants
#14
Teresa Cordero, Mohamed A Mohamed, Juan-José López-Moya, José-Antonio Daròs
Potato virus Y (PVY) is a major threat to the cultivation of potato and other solanaceous plants. By inserting a cDNA coding for the Antirrhinum majus Rosea1 transcription factor into a PVY infectious clone, we created a biotechnological tool (PVY-Ros1) that allows infection by this relevant plant virus to be tracked by the naked eye with no need for complex instrumentation. Rosea1 is an MYB-type transcription factor whose expression activates the biosynthesis of anthocyanin pigments in a dose-specific and cell-autonomous manner...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28376610/purification-and-characterization-of-the-laccase-involved-in-dye-decolorization-by-the-white-rot-fungus-marasmius-scorodonius
#15
Sung-Jong Jeon, Su-Jin Lim
Marasmius scorodonius secretes an extracellular laccase in potato dextrose broth, and this enzyme was purified up to 206-fold using (NH4)2SO4 precipitation and a Hi-trap Q Sepharose column. The molecular mass of the purified laccase was estimated to be ~67 kDa by SDS-PAGE. The UV/vis spectrum of the enzyme was nontypical for laccases, and metal content analysis revealed that the enzyme contains 1 mole of Fe and Zn and 2 moles of Cu per mole of protein. The optimal pH for the enzymatic activity was 3.4, 4.0, and 4...
June 28, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28334066/effect-of-drive-row-ground-covers-on-hop-rosales-cannabaceae-yard-arthropod-pests-in-vermont-usa
#16
L Calderwood, J Cubins, D Vesty, H Darby
Alternatives to pesticides are necessary for the management of hop (Humulus lupulus L.) arthropod pests. The three major arthropod pests in northeastern US hop production include two-spotted spider mite, Tetranychus urticae Koch, hop aphid Phorodon humuli (Schrank), and potato leafhopper, Empoasca fabae Harris. This 3-yr study (2012-2014) in Vermont investigated the effect of flowering ground covers on arthropod pest abundance. Hop cultivars 'Nugget' and 'Cascade' were evaluated under a strip-split plot experimental design...
April 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28333357/dietary-patterns-foods-and-nutrients-in-male-fertility-parameters-and-fecundability-a-systematic-review-of-observational-studies
#17
Albert Salas-Huetos, Mònica Bulló, Jordi Salas-Salvadó
BACKGROUND: Infertility is a global public health issue, affecting 15% of all couples of reproductive age. Male factors, including decreased semen quality, are responsible for ~25% of these cases. The dietary pattern, the components of the diet and nutrients have been studied as possible determinants of sperm function and/or fertility. OBJECTIVE AND RATIONALE: Previous systematic reviews have been made of the few heterogeneous low-quality randomized clinical trials (RCTs) conducted in small samples of participants and investigating the effect of specific nutrients and nutritional supplements on male infertility...
July 1, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28315019/an-endophytic-fungus-gibberella-moniliformis-from-lawsonia-inermis-l-produces-lawsone-an-orange-red-pigment
#18
Hatnagar Sarang, Pijakala Rajani, Madhugiri Mallaiah Vasanthakumari, Patel Mohana Kumara, Ramamoorthy Siva, Gudasalamani Ravikanth, R Uma Shaanker
Lawsone (2-hydroxy-1, 4-napthoquinone), also known as hennotannic acid, is an orange red dye used as a popular skin and hair colorant. The dye is produced in the leaves of Lawsonia inermis L, often referred to as the "henna" tree. In this study, we report the production of lawsone by an endophytic fungus, Gibberella moniliformis isolated from the leaf tissues of Lawsonia inermis. The fungus produced the orange-red dye in potato dextrose agar and broth, independent of the host tissue. Presence of lawsone was confirmed spectrometrically using HPLC and ESI-MS/MS analysis...
March 17, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28133993/a-healthy-diet-optimal-sleep-lifestyle-pattern-is-inversely-associated-with-liver-stiffness-and-insulin-resistance-in-patients-with-nonalcoholic-fatty-liver-disease
#19
Christina N Katsagoni, George V Papatheodoridis, Maria-Vasiliki Papageorgiou, Panagiota Ioannidou, Melanie Deutsch, Alexandra Alexopoulou, Nikolaos Papadopoulos, Elisabeth Fragopoulou, Meropi D Kontogianni
Several lifestyle habits have been described as risk factors for nonalcoholic fatty liver disease (NAFLD). Given that both healthy and unhealthy habits tend to cluster, the aim of this study was to identify lifestyle patterns and explore their potential associations with clinical characteristics of individuals with NAFLD. One hundred and thirty-six consecutive patients with ultrasound-proven NAFLD were included. Diet and physical activity level were assessed through appropriate questionnaires. Habitual night sleep hours and duration of midday naps were recorded...
March 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28056069/engineering-potato-starch-with-a-higher-phosphate-content
#20
Xuan Xu, Xing-Feng Huang, Richard G F Visser, Luisa M Trindade
Phosphate esters are responsible for valuable and unique functionalities of starch for industrial applications. Also in the cell phosphate esters play a role in starch metabolism, which so far has not been well characterized in storage starch. Laforin, a human enzyme composed of a carbohydrate-binding module and a dual-specificity phosphatase domain, is involved in the dephosphorylation of glycogen. To modify phosphate content and better understand starch (de)phosphorylation in storage starch, laforin was engineered and introduced into potato (cultivar Kardal)...
2017: PloS One
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