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Plant Foods for Human Nutrition

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https://www.readbyqxmd.com/read/27917454/comparative-study-of-betacyanin-profile-and-antimicrobial-activity-of-red-pitahaya-hylocereus-polyrhizus-and-red-spinach-amaranthus-dubius
#1
Yi Yi Yong, Gary Dykes, Sui Mae Lee, Wee Sim Choo
Betacyanins are reddish to violet pigments that can be found in red pitahaya (Hylocereus polyrhizus) and red spinach (Amaranthus dubius). This study investigated the impact of sub-fractionation (solvent partitioning) on betacyanin content in both plants. Characterization of betacyanins and evaluation of their antimicrobial activities were also carried out. Betanin was found in both plants. In addition, isobetanin, phyllocactin and hylocerenin were found in red pitahaya whereas amaranthine and decarboxy-amaranthine were found in red spinach...
December 5, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27900602/transepithelial-transport-of-curcumin-in-caco-2-cells-is-significantly-enhanced-by-micellar-solubilisation
#2
Jan Frank, Christina Schiborr, Alexa Kocher, Jürgen Meins, Dariush Behnam, Manfred Schubert-Zsilavecz, Mona Abdel-Tawab
Curcumin, the active constituent of Curcuma longa L. (family Zingiberaceae), has gained increasing interest because of its anti-cancer, anti-inflammatory, anti-diabetic, and anti-rheumatic properties associated with good tolerability and safety up to very high doses of 12 g. Nanoscaled micellar formulations on the base of Tween 80 represent a promising strategy to overcome its low oral bioavailability. We therefore aimed to investigate the uptake and transepithelial transport of native curcumin (CUR) vs. a nanoscaled micellar formulation (Sol-CUR) in a Caco-2 cell model...
November 29, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27830352/antioxidant-and-antihypertensive-potential-of-protein-fractions-from-flour-and-milk-substitutes-from-canary-seeds-phalaris-canariensis-l
#3
María Elena Valverde, Domancar Orona-Tamayo, Blanca Nieto-Rendón, Octavio Paredes-López
Canary seed (Phalaris canariensis) is used to feed birds but it has been recently considered a promising cereal with nutraceutical potential for humans. The aim of this work was to analyze the protein fractions from canary seed flour and from milk substitutes (prepared by soaking the seeds in water 12 and 24 h), and to evaluate antioxidant and antihypertensive capacity of peptides obtained after in vitro digestion. Prolamins were the major protein fraction, followed by glutelins. After digestion, albumins and prolamins fractions from milks presented higher levels of peptides than flour, globulins showed more peptides in flour and glutelins were found in similar concentrations in all samples; 24 h milk prolamins had the highest concentration of peptides...
November 9, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27817090/optimization-of-physical-conditions-for-the-aqueous-extraction-of-antioxidant-compounds-from-ginger-zingiber-officinale-applying-a-box-behnken-design
#4
Juan Ramírez-Godínez, Judith Jaimez-Ordaz, Araceli Castañeda-Ovando, Javier Añorve-Morga, Verónica Salazar-Pereda, Luis Guillermo González-Olivares, Elizabeth Contreras-López
Since ancient times, ginger (Zingiber officinale) has been widely used for culinary and medicinal purposes. This rhizome possesses several chemical constituents; most of them present antioxidant capacity due mainly to the presence of phenolic compounds. Thus, the physical conditions for the optimal extraction of antioxidant components of ginger were investigated by applying a Box-Behnken experimental design. Extracts of ginger were prepared using water as solvent in a conventional solid-liquid extraction. The analyzed variables were time (5, 15 and 25 min), temperature (20, 55 and 90 °C) and sample concentration (2, 6 and 10 %)...
November 5, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27817089/evaluation-of-physicochemical-and-glycaemic-properties-of-commercial-plant-based-milk-substitutes
#5
Stephanie Jeske, Emanuele Zannini, Elke K Arendt
The market for plant-based dairy-type products is growing as consumers replace bovine milk in their diet, for medical reasons or as a lifestyle choice. A screening of 17 different commercial plant-based milk substitutes based on different cereals, nuts and legumes was performed, including the evaluation of physicochemical and glycaemic properties. Half of the analysed samples had low or no protein contents (<0.5 %). Only samples based on soya showed considerable high protein contents, matching the value of cow's milk (3...
November 5, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27812831/carotenoids-phenolic-profile-mineral-content-and-antioxidant-properties-in-flesh-and-peel-of-prunus-persica-fruits-during-two-maturation-stages
#6
Samia Dabbou, Samira Maatallah, Antonella Castagna, Monia Guizani, Wala Sghaeir, Hichem Hajlaloui, Annamaria Ranieri
Carotenoids and phenolic profile, antioxidant activity as well as concentrations of selected macronutrients (K, N, Mg, Ca and Na) and micronutrients (Zn, Cu and Mn) in flesh and peel of peach fruit were recorded at two harvest dates. Predominant mineral was potassium, followed by calcium, magnesium and sodium. The concentration of most micronutrients was greater in the peel than in the flesh especially in early season. The concentration of most elements in flesh and peel decreased during fruit maturation. Total carotenoids content varied with respect to the cultivar...
November 3, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27787697/evaluation-of-total-flavonoids-myricetin-and-quercetin-from-hovenia-dulcis-thunb-as-inhibitors-of-%C3%AE-amylase-and-%C3%AE-glucosidase
#7
Yonghong Meng, Anping Su, Shuang Yuan, Huaguo Zhao, Siyuan Tan, Chingyuan Hu, Hong Deng, Yurong Guo
This study was designed to investigate the inhibition effect and mechanism of total flavonoids, myricetin and quercetin extracted from Hovenia dulcis Thunb. on α-amylase and α-glucosidase in order to explore the potential use of Hovenia flavonoids in alleviating postprandial hyperglycemia. The results demonstrate that total flavonoids, myricetin, and quercetin were effective inhibitors of α-amylase with IC50 values of 32.8, 662 and 770 μg ml(-1), respectively. And all three were effective inhibitors of α-glucosidase with IC50 values of 8, 3 and 32 μg ml(-1), respectively...
October 27, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27738868/phytochemicals-monosaccharides-and-elemental-composition-of-the-non-pomace-constituent-of-organic-and-conventional-grape-juices-vitis-labrusca-l-effect-of-drying-on-the-bioactive-content
#8
Isabel Cristina da Silva Haas, Isabela Maia Toaldo, Jefferson Santos de Gois, Daniel L G Borges, Carmen Lúcia de Oliveira Petkowicz, Marilde T Bordignon-Luiz
Grape and grape derivatives contain a variety of antioxidants that have gain increasing interest for functional foods applications. The chemical composition of grapes is mainly related to grape variety and cultivation factors, and each grape constituent exhib its unique characteristics regarding its bioactive properties. This study investigated the chemical composition and the effect of drying on the bioactive content of the non-pomace constituent obtained in the processing of organic and conventional grape juices from V...
October 13, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27679440/antioxidant-and-anticancer-activities-of-walnut-juglans-regia-l-protein-hydrolysates-using-different-proteases
#9
Raheleh Jahanbani, S Mahmood Ghaffari, Maryam Salami, Kourosh Vahdati, Houri Sepehri, Nazanin Namazi Sarvestani, Nader Sheibani, Ali Akbar Moosavi-Movahedi
Walnut (Juglans regia L.) contains approximately 20-25 % protein with abundant essential amino acids. The enzymatic hydrolysate of Persian walnut (Chandler) seed proteins was prepared by incubation with three different proteases, including pancreatic chymotrypsin and trypsin, and a microbial enzyme proteinase K. The hydrolysates were found to possess excellent antioxidant capacities. The peptide fractions scavenged the 2, 2'-anizo-bis-(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) free radicals and inhibited the activity of reactive oxygen species...
September 27, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27679437/in-silico-and-wet-lab-studies-reveal-the-cholesterol-lowering-efficacy-of-lauric-acid-a-medium-chain-fat-of-coconut-oil
#10
Devi Lekshmi Sheela, Puthiyaveetil Abdulla Nazeem, Arunaksharan Narayanankutty, Jeksy Jos Manalil, Achuthan C Raghavamenon
The coconut oil (CO) contains 91 % of saturated fatty acids in which 72 % are medium chain fatty acids (MCFAs) like lauric, capric and caprylic acids. In contrast to animal fat, coconut oil has no cholesterol. Despite this fact, CO is sidelined among other vegetable oils due to the health hazards attributed to the saturated fatty acids. Though various medicinal effects of CO have been reported including the hypolipidemic activity, people are still confused in the consumption of this natural oil. In silico analyses and wet lab experiments have been carried out to identify the hypolipidemic properties of MCFAs and phenolic acids in CO by using different protein targets involved in cholesterol synthesis...
September 27, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27663717/phytosterols-and-dementia
#11
Rong Shuang, Xu Rui, Li Wenfang
As the aging of the world's population is becoming increasingly serious, dementia-related diseases have become a hot topic in public health research. In recent years, human epidemiological studies have focused on lipid metabolism disorders and dementia. The efficacy of phytosterol intake as a cholesterol-lowering agent has been demonstrated. Phytosterols directly serve as ligands of the nuclear receptors, peroxisome proliferator-activated receptors (PPARs), activating Sirtuin 1 (SIRT-1), which are involved in the regulation of lipid metabolism and the pathogenesis of dementia...
September 23, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27679439/fructans-from-agave-tequilana-with-a-lower-degree-of-polymerization-prevent-weight-gain-hyperglycemia-and-liver-steatosis-in-high-fat-diet-induced-obese-mice
#12
A L Márquez-Aguirre, R M Camacho-Ruíz, Y K Gutiérrez-Mercado, E Padilla-Camberos, M González-Ávila, F J Gálvez-Gastélum, N E Díaz-Martínez, D Ortuño-Sahagún
Fructans from agave have received specific attention because of their highly branched fructan content. We have previously reported that the degree of polymerization (dp) influences their biological activity. Therefore, the aim of this study was to investigate the effect of unfractionated and fractionated fructans (higher and lower dps) from Agave tequilana in high-fat diet-induced (HFD) obese mice. Fructans with a lower dp (HFD+ScF) decreased weight gain by 30 %, body fat mass by 51 %, hyperglycemia by 25 % and liver steatosis by 40 %...
December 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27679438/quality-and-antioxidant-activity-of-buckwheat-based-cookies-designed-for-a-raw-food-vegan-diet-as-affected-by-moderate-drying-temperature
#13
Iveta Brožková, Veronika Dvořáková, Kateřina Michálková, Libor Červenka, Helena Velichová
Buckwheat cookies with various ingredients for raw food vegan diet are usually prepared by soaking them in water at ambient temperature followed by drying at moderate temperature. The aim of this study was to examine the temperature effect on the microbiological quality, antioxidant properties and oxidative stability of lipids of final dried samples. The mixture of ingredients was soaked for 20 h in distilled water, and then cookies were formed and dried in air-forced oven at constant temperature in the range from 40 to 60 °C...
December 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27605221/phenolic-compounds-antioxidant-activity-and-lipid-profile-of-huitlacoche-mushroom-ustilago-maydis-produced-in-several-maize-genotypes-at-different-stages-of-development
#14
Maribel Valdez-Morales, L Céspedes Carlos, María Elena Valverde, Enrique Ramírez-Chávez, Octavio Paredes-López
Huitlacoche mushroom (composed by the fruiting bodies growing on the maize ears from the basidiomycete Ustilago maydis) is a culinary delicacy with a great economic and nutraceutical value. In this work, phenolic content, antioxidant activity, ergosterol and fatty acids profile from huitlacoche produced in 15 creole and in one hybrid maize genotypes, and harvested at different stages of development were determined. The hybrid crop was studied in raw and cooked samples. Total phenolic content ranged from 415...
September 7, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27589874/ripening-of-pithecellobium-dulce-roxb-benth-guam%C3%A3%C2%BAchil-fruit-physicochemical-chemical-and-antioxidant-changes
#15
Abraham Wall-Medrano, Gustavo A González-Aguilar, Guadalupe F Loarca-Piña, José A López-Díaz, Mónica A Villegas-Ochoa, Orlando Tortoledo-Ortiz, Francisco J Olivas-Aguirre, Arnulfo Ramos-Jiménez, Ramón Robles-Zepeda
The fruit of Guamúchil is an excellent source of bioactive compounds for human health although their natural occurrence could be affected by the ripening process. The aim was to evaluate some physicochemical, chemical and antioxidant changes in guamúchil fruit during six ripening stages (I to VI). A defined trend (p ≤ 0.003) was observed for color [°Hue, 109 (light green) to 20 (dark red)], anthocyanins (+571 %), soluble solids (+0.33 (o)Brix), ash (+16 %), sucrose (-91 %), proanthocyanidins (63 %), ascorbic acid (-52 %) and hydrolysable PC (-21 %)...
September 2, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27422785/bioactive-properties-of-phaseolus-lunatus-lima-bean-and-vigna-unguiculata-cowpea-hydrolyzates-incorporated-into-pasta-residual-activity-after-pasta-cooking
#16
Silvina R Drago, Hanai Franco-Miranda, Raúl E Cian, David Betancur-Ancona, Luis Chel-Guerrero
The aims of the study were to study the inclusion of P. lunatus (PLH) and V. unguiculata (VUH) protein hydrolyzates with bioactive properties into a pasta-extruded product and determine residual activity after extrusion or pasta cooking. Both protein hydrolyzates showed angiotensin-converting enzyme inhibition (ACEI) and antioxidant activity (TEAC). PLH showed higher ACEI but lower TEAC than VUH (97.19 ± 0.23 vs. 91.95 ± 0.29 % and 244.7 ± 3.4 vs. 293.7 ± 3.3 μmol Trolox/g, respectively). They were included at 5 or 10 % into wheat pasta...
September 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27405766/dehydrated-basella-alba-fruit-juice-as-a-novel-natural-colorant-pigment-stability-in-vivo-food-safety-evaluation-and-anti-inflammatory-mechanism-characterization
#17
Fu-Long Huang, Robin Y-Y Chiou, Wei-Cheng Chen, Huey-Jiun Ko, Li-Jung Lai, Shu-Mei Lin
Flesh of Basella alba L. mature fruits bearing deep-violet juice provides a novel and potential source of natural colorant. To minimize the pigment purification process and warrant safety acceptability, B. alba colorant powder (BACP) was prepared using mature fruits through a practical batch preparation and subjected to fundamental pigment characterization, food safety assessment and bio-function evaluation. Yield of the dehydrated B. alba colorant powder (BACP) was 37 g/kg fresh fruits. Reconstituted aqueous solution of the BACP exhibited an identical visible spectrum (400-700 nm) as that of fresh juice...
September 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27392960/pomological-traits-sensory-profile-and-nutraceutical-properties-of-nine-cultivars-of-loquat-eriobotrya-japonica-lindl-fruits-grown-in-mediterranean-area
#18
C Gentile, C Reig, O Corona, A Todaro, A Mazzaglia, A Perrone, G Gianguzzi, M Agusti, V Farina
In this paper the diversity of fruit quality within nine loquat cultivars, including five international affirmed cultivars (Algerie, Golden Nugget, Peluche, Bueno, El Buenet) and four local cultivars (Sanfilippara, Nespolone di Trabia, BRT20 and Claudia), were investigated in order to discriminate the variation in pomological characteristics, sensory profile, and antioxidant properties. Finally, to evaluate potential bioactivity, antiproliferative activity of hydrophilic extracts from loquat fruits was assessed, at dietary relevant concentrations, against three human epithelial cell lines...
September 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27380456/cytotoxic-and-nitric-oxide-inhibition-activities-of-propolis-extract-along-with-microencapsulation-by-complex-coacervation
#19
Rabia Onbas, Aslihan Kazan, Ayse Nalbantsoy, Ozlem Yesil-Celiktas
In this study, cytotoxicity of ethanol extract of propolis (EEP) originating from Sivas, Turkey was screened against several cancer cell lines, namely PC-3, U87MG, A-549, mPANC96, CaCo-2, MCF-7, HeLa, MDA-MB-231 and a non-tumor cell line HEK293 by MTT assay. The inhibition levels of inducible nitric oxide synthase (iNOS) were also determined by using RAW 264.7 macrophage cells following lipopolysaccharide (LPS) treatment. EEP exhibited significant cytotoxic nitric oxide inhibition activities with an IC50 value of 0...
September 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27372805/hypolipidemic-and-antioxidant-properties-of-hot-pepper-flower-capsicum-annuum-l
#20
Mariangela Marrelli, Francesco Menichini, Filomena Conforti
At present, the various medical treatments of obesity involve side effects. The aim of the research is therefore to find natural compounds that have anti-obesity activity with minimum disadvantages. In this study, the hypolipidemic effect of hydroalcoholic extract of flowers from Capsicum annuum L. was examined through the evaluation of inhibition of pancreatic lipase. Antioxidant activity was assessed using different tests: 2,2-diphenyl-1-picrylhydrazyl (DPPH), nitric oxide (˙NO) and lipid peroxidation inhibition assays...
September 2016: Plant Foods for Human Nutrition
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