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https://www.readbyqxmd.com/read/29146343/classification-of-white-maize-defects-with-multispectral-imaging
#1
Kate Sendin, Marena Manley, Paul J Williams
Multispectral imaging with object-wise multivariate image analysis was evaluated for its potential to grade whole white maize kernels. The types of defective materials regarded in grading legislation were divided into 13 classes, and were imaged with a multispectral imaging instrument spanning the UV, visible and NIR regions (19 wavelengths ranging from 375 to 970nm). Object-wise partial least squares discriminant analysis (PLS-DA) models were developed and validated with an independent data set. Results demonstrated good performance in distinguishing between sound maize and undesirable materials, with cross-validated coefficients of determination (Q(2)) and classification accuracies ranging from 0...
March 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29142827/overexpression-of-the-primary-sigma-factor-gene-siga-improved-carotenoid-production-by-corynebacterium-glutamicum-application-to-production-of-%C3%AE-carotene-and-the-non-native-linear-c50-carotenoid-bisanhydrobacterioruberin
#2
Hironori Taniguchi, Nadja A Henke, Sabine A E Heider, Volker F Wendisch
Corynebacterium glutamicum shows yellow pigmentation due to biosynthesis of the C50 carotenoid decaprenoxanthin and its glycosides. This bacterium has been engineered for production of various non-native cyclic C40 and C50 carotenoids such as β-carotene, astaxanthin or sarcinaxanthin. In this study, the effect of modulating gene expression more broadly by overexpression of sigma factor genes on carotenoid production by C. glutamicum was characterized. Overexpression of the primary sigma factor gene sigA improved lycopene production by recombinant C...
June 2017: Metabolic Engineering Communications
https://www.readbyqxmd.com/read/29120377/concentrations-of-carotenoids-and-tocopherols-in-breast-milk-from-urban-chinese-mothers-and-their-associations-with-maternal-characteristics-a-cross-sectional-study
#3
Yong Xue, Esther Campos-Giménez, Karine Meisser Redeuil, Antoine Lévèques, Lucas Actis-Goretta, Gerard Vinyes-Pares, Yumei Zhang, Peiyu Wang, Sagar K Thakkar
Milk composition remains the best estimate of infant requirements. The aims of this study were to quantify carotenoids and tocopherols in human milk from healthy Chinese mothers, and to explore their associations with lactation stage, region, socio-economic and obstetric characteristics, and dietary intake. Human milk was obtained from 509 healthy mothers, and concentrations of carotenoids and tocopherols were analyzed by Ultra High Performance Liquid Chromatography. The mothers' socio-economic and obstetric characteristics and dietary intake through a single 24-h dietary recall were evaluated...
November 9, 2017: Nutrients
https://www.readbyqxmd.com/read/29110607/serum-carotenoids-and-risks-of-diabetes-and-diabetic-retinopathy-in-a-chinese-population-sample
#4
C She, F Shang, K Zhou, N Liu
OBJECTIVE: Diabetes mellitus (DM) and diabetic retinopathy (DR) are associated with oxidative stress and carotenoids have antioxidant properties. This study aimed to test the relationship between serum carotenoid concentrations and the risk for DM and DR. METHODS: This is a cross-sectional study of the Chinese urban population. A total of 747 subjects, consisting of 272 DR patients, 190 diabetic patients without retinopathy, and 285 non-diabetes mellitus healthy controls, were recruited to this study...
November 5, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/29107825/atrazine-induced-environmental-nephrosis-was-mitigated-by-lycopene-via-modulating-nuclear-xenobiotic-receptors-mediated-response
#5
Jun Xia, Jia Lin, Xue-Nan Li, Cong Zhang, Nan Li, Zheng-Hai Du, Yan-Hua Li, Jin-Long Li
The burden and morbidity of environmental nephrosis is increasing globally. Atrazine (ATR) and degradation products in the environment are considered key determinants of nephrosis. However, the lack of highly effective treatments for environmental nephrosis creates an urgent need to better understand the preventive strategies and mechanisms. This study aimed to highlight the mechanism of ATR-induced environmental nephrosis and the chemoprotective potential of lycopene (LYC) against the renal injury and nephrosis...
September 21, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29106966/single-step-preparation-of-selected-biological-fluids-for-the-high-performance-liquid-chromatographic-analysis-of-fat-soluble-vitamins-and-antioxidants
#6
Giacomo Lazzarino, Salvatore Longo, Angela Maria Amorini, Valentina Di Pietro, Serafina D'Urso, Giuseppe Lazzarino, Antonio Belli, Barbara Tavazzi
Fat-soluble vitamins and antioxidants are of relevance in health and disease. Current methods to extract these compounds from biological fluids mainly need use of multi-steps and multi organic solvents. They are time-consuming and difficult to apply to treat simultaneously large sample number. We here describe a single-step, one solvent extraction of fat-soluble vitamins and antioxidants from biological fluids, and the chromatographic separation of all-trans-retinoic acid, 25-hydroxycholecalciferol, all-trans-retinol, astaxanthin, lutein, zeaxanthin, trans-β-apo-8'-carotenal, γ-tocopherol, β-cryptoxanthin, α-tocopherol, phylloquinone, lycopene, α-carotene, β-carotene and coenzyme Q10...
December 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29091464/effect-of-four-weeks-ingestion-of-tomato-based-carotenoids-on-exercise-induced-inflammation-muscle-damage-and-oxidative-stress-in-endurance-runners
#7
David C Nieman, Courtney L Capps, Christopher R Capps, Zack L Shue, Jennifer E McBride
This double blind, randomized, placebo controlled crossover trial determined if ingestion of a supplement containing a tomato extract with 11 mg lycopene, phytoene, and phytofluene (T-LPP) for 4 weeks would attenuate inflammation, muscle damage, and oxidative stress post-exercise and during recovery from a 2-h running bout that included 30 minutes of -10% downhill running. Study participants ingested the T-LPP supplement or placebo with the evening meal for 4 weeks prior to running 2 h at high intensity. Blood samples and delayed-onset of muscle soreness (DOMS) ratings were taken pre- and post-4-weeks supplementation, and immediately following the 2-h run, and then 1-h-, 24-h-, and 48-h post-run...
November 1, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29075115/novel-biomolecule-lycopene-reduced-graphene-oxide-silver-nanoparticle-enhances-apoptotic-potential-of-trichostatin-a-in-human-ovarian-cancer-cells-skov3
#8
Xi-Feng Zhang, Feng-Hua Huang, Guo-Liang Zhang, Ding-Ping Bai, De Felici Massimo, Yi-Fan Huang, Sangiliyandi Gurunathan
BACKGROUND: Recently, there has been much interest in the field of nanomedicine to improve prevention, diagnosis, and treatment. Combination therapy seems to be most effective when two different molecules that work by different mechanisms are combined at low dose, thereby decreasing the possibility of drug resistance and occurrence of unbearable side effects. Based on this consideration, the study was designed to investigate the combination effect of reduced graphene oxide-silver nanoparticles (rGO-AgNPs) and trichostatin A (TSA) in human ovarian cancer cells (SKOV3)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29065183/an-electroporation-free-method-based-on-red-recombineering-for-markerless-deletion-and-genomic-replacement-in-the-escherichia-coli-dh1-genome
#9
Yanlong Wei, Pingping Deng, Ali Mohsin, Yan Yang, Huayan Zhou, Meijin Guo, Hongqing Fang
The λ-Red recombination system is a popular method for gene editing. However, its applications are limited due to restricted electroporation of DNA fragments. Here, we present an electroporation-free λ-Red recombination method in which target DNA fragments are excised by I-CreI endonuclease in vivo from the landing pad plasmid. Subsequently, the I-SceI endonuclease-cutting chromosome and DNA double-strand break repair were required. Markerless deletion and genomic replacement were successfully accomplished by this novel approach...
2017: PloS One
https://www.readbyqxmd.com/read/29062693/computational-deciphering-of-biotic-stress-associated-genes-in-tomato-solanum-lycopersicum
#10
G Tandon, S Singh, S Kaur, Sarika, M A Iquebal, A Rai, D Kumar
Tomato (Solanum lycopersicum) is one of the major vegetable plant and a model system for fruit development. Its global importance is due to its lycopene pigment which has anti-oxidative and anti-cancerous properties. Though > 1.5 M biotic stress associated ESTs of tomato are available but cumulative analysis to predict genes is warranted. Availability of whole genome de novo assembly can advantageously be used to map them over different chromosome. Further, available 0.14 M catalogued markers can be used to introgress specific desirable genes in varietal improvement program...
December 2017: Genomics Data
https://www.readbyqxmd.com/read/29055974/technology-development-of-protein-rich-concentrates-for-nutrition-in-extreme-conditions-using-soybean-and-meat-by-products
#11
Tatiana K Kalenik, Rui Costa, Elena V Motkina, Tamara A Kosenko, Olga V Skripko, Irina A Kadnikova
BACKGROUND: There is a need to develop new foods for participants of expeditions in extreme conditions, which must be self-sufficient. These foods should be light to carry, with a long shelf life, tasty and with  high nutrient density. Currently, protein sources are limited mainly to dried and canned meat. In this work, a protein-rich dried concentrate suitable for extreme expeditions was developed using soya, tomato, milk whey and meat by-products. METHODS: Protein concentrates were developed using minced beef liver and heart, dehydrated and mixed with a soya protein-lycopene coagulate (SPLC) obtained from a solution prepared with germi- nated soybeans and mixed with tomato paste in milk whey, and finally dried...
July 2017: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/29052471/a-review-about-lycopene-induced-nuclear-hormone-receptor-signalling-in-inflammation-and-lipid-metabolism-via-still-unknown-endogenous-apo-10%C3%A2-lycopenoids
#12
Catherine Caris-Veyrat, Ada L Garcia, Eric Reynaud, Renata Lucas, Gamze Aydemir, Ralph Rühl
Lycopene is the red pigment in tomatoes and tomato products and is an important dietary carotenoid found in the human organism. Lycopene-isomers, oxidative lycopene metabolites and apo-lycopenoids are found in the food matrix. Lycopene intake derived from tomato consumption is associated with alteration of lipid metabolism and a lower incidence of cardiovascular diseases (CVD). Lycopene is mainly described as a potent antioxidant but novel studies are shifting towards its metabolites and their capacity to mediate nuclear receptor signalling...
October 20, 2017: International Journal for Vitamin and Nutrition Research. Journal International de Vitaminologie et de Nutrition
https://www.readbyqxmd.com/read/29051767/combined-effects-of-irrigation-regime-genotype-and-harvest-stage-determine-tomato-fruit-quality-and-aptitude-for-processing-into-puree
#13
Alexandre Arbex de Castro Vilas Boas, David Page, Robert Giovinazzo, Nadia Bertin, Anne-Laure Fanciullino
Industry tomatoes are produced under a range of climatic conditions and practices which significantly impact on main quality traits of harvested fruits. However, the quality of tomato intended for processing is currently addressed on delivery through color and Brix only, whereas other traits are overlooked. Very few works provided an integrated view of the management of tomato puree quality throughout the chain. To gain insights into pre- and post-harvest interactions, four genotypes, two water regimes, three maturity stages, and two processes were investigated...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29048567/green-fruited-solanum-habrochaites-lacks-fruit-specific-carotenogenesis-due-to-metabolic-and-structural-blocks
#14
Himabindu Vasuki Kilambi, Kalyani Manda, Avanish Rai, Chaitanya Charakana, Jayram Bagri, Rameshwar Sharma, Yellamaraju Sreelakshmi, Christine Raines
Members of the tomato clade exhibit a wide diversity in fruit color, but the mechanisms governing inter-species diversity of coloration are largely unknown. The carotenoid profiles, carotenogenic gene expression and proteome profiles of green-fruited Solanum habrochaites (SH), orange-fruited S. galapagense, and red-fruited S. pimpinellifolium were compared with cultivated tomato [S. lycopersicum cv. Ailsa Craig (SL)] to decipher the molecular basis of coloration diversity. Green-fruited SH, though it showed normal expression of chromoplast-specific phytoene synthase1 and lycopene β-cyclase genes akin to orange/red-fruited species, failed to accumulate lycopene and β-carotene...
October 13, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29046014/tomato-cry1a-plays-a-critical-role-in-the-regulation-of-phytohormone-homeostasis-plant-development-and-carotenoid-metabolism-in-fruits
#15
Chao-Chao Liu, Golam Jalal Ahammed, Guo-Ting Wang, Chang-Jie Xu, Kun-Song Chen, Yan-Hong Zhou, Jing-Quan Yu
Blue light photoreceptors, cryptochromes (CRYs), regulate multiple aspects of plant growth and development. However, our knowledge of CRYs is predominantly based on model plant Arabidopsis at early growth stage. In this study, we elucidated functions of CRY1a gene in mature tomato (Solanum lycopersicum) plants by using cry1a mutants and CRY1a overexpressing lines (OE-CRY1a-1 and OE-CRY1a-2). In comparison with wild-type plants, cry1a mutants are relatively tall, accumulate low biomass and bear more fruits, whereas OE-CRY1a plants are short stature, and they not only flower lately but also bear less fruits...
October 18, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/29043851/antioxidants-in-the-treatment-of-cancer
#16
Kanthi Athreya, Marin F Xavier
Several clinical trials have produced conflicting results regarding the benefit of antioxidants in cancer therapy thus questioning the incorporation of these substances in standard treatment regimens. Vitamins E and C, selenium, carotenoids, lycopene, soy products, and green tea extract are a few substances with antioxidant properties that have been studied in detail. This article reviews the results generated over the last 20 years through in vitro and in vivo studies in various types of cancers and stages of cancer treatment...
October 18, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/29037711/characterization-of-carotenoids-and-vitamin-e-in-r-rugosa-and-r-canina-comparative-analysis
#17
Ahlam Al-Yafeai, Angelika Malarski, Volker Böhm
The hips of Rosa species have gained more attention in recent years due to their high contents of antioxidant compounds. This study was designed to compare rosehips of the two roses species Rosa rugosa and Rosa canina, including different products, on carotenoid contents, including phytoene and phytofluene, as well as vitamin E. The investigation allowed the identification and quantification of types of (Z)-isomers of lycopene and rubixanthin in both rosehips and focused also on isomerisation of both carotenoids...
March 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29023335/radioprotective-effect-of-lycopene-on-the-gastrointestinal-tract-after-high-dose-radioiodine-administration-in-rat-models
#18
Murat Sadic, Fadimana N Aydinbelge, Nihat Yumusak, Emre Karakok, Aylin Akbulut, Gokhan Koca, Meliha Korkmaz
PURPOSE: The aim of this study was to evaluate the effect of lycopene against radioactive iodine (RAI)-related gastrointestinal tract acute damage in a rat model as a novel radioprotective agent. MATERIALS AND METHODS: Twenty Wistar albino rats were divided into two equal groups: group 1 was administered only RAI and group 2 was administered RAI and lycopene. All rats were killed 24 h after the last administration of the agents and the gastrointestinal tract organs were removed surgically for histopathological examination...
December 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28983399/carotenoids-as-potential-antioxidant-agents-in-stroke-prevention-a-systematic-review
#19
REVIEW
Ahmad Bahonar, Mohammad Saadatnia, Fariborz Khorvash, Mohammadreza Maracy, Alireza Khosravi
Stroke and other cerebrovascular diseases are among the most common causes of death worldwide. Prevention of modifiable risk factors is a cost-effective approach to decrease the risk of stroke. Oxidative stress is regarded as the major flexible operative agent in ischemic brain damage. This review presents recent scientific advances in understanding the role of carotenoids as antioxidants in lowering stroke risk based on observational studies. We searched Medline using the following terms: (Carotenoids [MeSH] OR Carotenes [tiab] OR Carotene [tiab] OR "lycopene [Supplementary Concept]" [MeSH] OR lycopene [tiab] OR beta-Carotene [tiab]) AND (stroke [MeSH] OR stroke [tiab] OR "Cerebrovascular Accident" [tiab] OR "Cerebrovascular Apoplexy" [tiab] OR "Brain Vascular Accident" [tiab] OR "Cerebrovascular Stroke" [tiab]) AND ("oxidative stress" [MeSH] OR "oxidative stress"[tiab])...
2017: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28981464/associations-of-dietary-antioxidants-and-risk-of-type-2-diabetes-data-from-the-2007-2012-korea-national-health-and-nutrition-examination-survey
#20
Dan Yedu Quansah, Kyungho Ha, Shinyoung Jun, Seong-Ah Kim, Sangah Shin, Gyung-Ah Wie, Hyojee Joung
Antioxidants are suggested to decrease risk of type 2 diabetes (T2D) by preventing progressive impairment of pancreatic β-cell and endothelial function. This study was aimed to investigate the association between dietary antioxidants and risk of T2D in Korean adults based on a national representative data. A total of 24,377 adults (19-74 years) who completed one-day 24 h dietary recall and health examination were included. Dietary antioxidant intakes including α-carotene (p < 0.0001), lycopene (p = 0.0107), flavan-3-ols (p < 0...
October 5, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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