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Plant Foods for Human Nutrition

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https://www.readbyqxmd.com/read/28620796/antioxidant-capacity-of-beetroot-traditional-vs-novel-approaches
#1
Celia Carrillo, Raquel Rey, Marc Hendrickx, María Del Mar Cavia, Sara Alonso-Torre
Red beetroot has been ranked among the 10 most potent antioxidant vegetables, although only extraction-based methods have been used to evaluate its total antioxidant capacity. Therefore, the present study aims at comparing the traditional extraction-based method with two more recent approaches (QUENCHER -QUick, Easy, New, CHEap and Reproducible- and GAR -global antioxidant response method), in order to establish their suitability in the case of beetroot. Our results indicate that the total antioxidant capacity of beetroot would be underestimated when using extraction-based procedures, since both QUENCHER and GAR methods resulted in a higher total antioxidant capacity...
June 15, 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28600693/antioxidant-capacity-analysis-of-blackberry-extracts-with-different-phytochemical-compositions-and-optimization-of-their-ultrasound-assisted-extraction
#2
Abraham Figueiras Abdala, Nadia Mendoza, Nancy Valadez Bustos, Eleazar Máximo Escamilla Silva
High antioxidant capacity molecules, such as anthocyanins, occur naturally in blackberry (Rubus fruticosus). In particular, 'Dasha' blackberry cultivar has scarcely been studied and, it is becoming economically more important in Mexico. In this study, several blackberry extraction conditions, conferred different amounts of detectable phytochemical groups that in turn were analysed with a new approach to investigate their influence on antioxidant capacity (AC). Additionally, a central composite design (CCD) was proposed to study effects of temperature and acidification on AC...
June 10, 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28597137/investigation-of-the-potential-health-benefits-as-lipase-inhibitor-and-antioxidant-of-leopoldia-comosa-l-parl-variability-of-chemical-composition-of-wild-and-cultivated-bulbs
#3
Mariangela Marrelli, Stefania La Grotteria, Fabrizio Araniti, Filomena Conforti
There is a great interest in the nutritional value of vegetables and fruits and how the habitat affects nutritive and biological properties. In vitro studies here reported were performed to evaluate the inhibitory activity of formulations from edible plant on pancreatic lipase. The aim of this study was also to evaluate the biovariability of L. comosa (L.) Parl. bulbs from Italy. The wild bulbs were compared with the same cultivated species that are commonly commercialized to identify samples with the best quality for a potential therapeutic application...
June 8, 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28584897/effects-of-juice-processing-on-oxalate-contents%C3%A2-in-carambola-juice-products
#4
Nha K Huynh, Ha V H Nguyen
Effects of processing methods including pressing, enzyme-assisted extraction, lactic acid fermentation by Lactobacillus acidophilus, and alcohol fermentation by Saccharomyces cerevisiae on total and soluble oxalate contents of carambola juices were studied. In comparison with pressing, the use of enzyme increased juice yields (15.89-17.29%), but resulted in higher total oxalate (1.60-1.73 times) and soluble oxalate contents (1.16-1.49 times). In addition, extension of enzyme incubation periods led to an increase in soluble oxalate contents in the products (p < 0...
June 6, 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28550342/influence-of-dietary-avocado-on-gut-health-in-rats
#5
Gunaranjan Paturi, Christine A Butts, Kerry L Bentley-Hewitt
This study investigated the impact of diets containing various levels of avocado (5, 10 and 15%) on gut health in rats fed for six weeks. Avocado-fed rats had significantly higher food intakes while their body weights remained similar to the control diet-fed rats. No significant changes in intestinal bacterial populations (ileum, cecum and colon) were found in rats fed avocado diets compared to the control diet. Ileum and colon tissues of rats fed avocado diets showed significantly higher expression of genes (β-defensin 1, mucin 3 or mucin 4) and a greater number of mucin-producing goblet cells in the colon...
May 26, 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28503711/bioactivity-improvement-of-olea-europaea-leaf-extract-biotransformed-by-wickerhamomyces-anomalus-enzymes
#6
Rosa Palmeri, Cristina Restuccia, Julieta Ines Monteleone, Elisa Sperlinga, Laura Siracusa, Mauro Serafini, Alberto Finamore, Giovanni Spagna
Olive leaves represent a quantitatively significant by-product of agroindustry. They are rich in phenols, mainly oleuropein, which can be hydrolyzed into several bioactive compounds, including hydroxytyrosol. In this study, water extract from olive leaves 'Biancolilla' was analyzed for polyphenol profile, DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity and protective effect on differentiated Caco-2 cells. The efficacy of two enzymatic treatments in promoting the release of bioactive phenols was investigated: a) enzymatic extract from Wickerhamomyces anomalus, characterized by β-glucosidase and esterase activities; b) commercial β-glucosidase...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28466135/optimization-of-the-preparation-conditions-of-yerba-mate-tea-beverage-to-maximize-chlorogenic-acids-extraction
#7
Tayse Ferreira Ferreira da Silveira, Adriana Dillenburg Meinhart, Thaís Cristina Lima de Souza, Elenice Carla Emídio Cunha, Maria Rosa de Moraes, José Teixeira Filho, Helena Teixeira Godoy
The beverage obtained from the yerba mate tea, besides being the most consumed in Brazil, has high concentrations of chlorogenic acids. In this study, a central composite design was employed to establish the best infusion time, temperature and water volume to maximize the extraction of chlorogenic acids 5-caffeoylquinic (5CQ), 3.4-dicaffeoylquinic (3.4 DQ), 3.5-dicaffeoylquinic (3.5 DQ) and 4.5-dicaffeoylquinic (4.5 DQ), from the leaves and stems of yerba mate tea (beverage ready for consumption). Analyses were performed by high-performance liquid chromatography and the optimum conditions were obtained through the use of the desirability function of Derringer and Suich...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28466134/effect-of-sea-buckthorn-hippopha%C3%A3-rhamnoides-l-pulp-oil-consumption-on-fatty-acids-and-vitamin-a-and-e-accumulation-in-adipose-tissue-and-liver-of-rats
#8
Sylwester Czaplicki, Dorota Ogrodowska, Ryszard Zadernowski, Iwona Konopka
An in vivo experiment was conducted to determine the effect of sea-buckthorn pulp oil feeding on the fatty acid composition of liver and adipose tissue of Wistar rats and the liver accumulation of retinol, its esters and α-tocopherol. For a period of 28 days, rats were given a modified casein diet (AIN-93) in which sea-buckthorn pulp oil, soybean oil and pork lard were used as sources of fat. Compared to the other fat sources, sea-buckthorn pulp oil was the most abundant in C16 fatty acids, carotenoids (mainly β-carotene) and tocopherols (mainly α-tocopherol)...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28447255/phenolic-compounds-volatiles-and-antioxidant-capacity-of-white-myrtle-berry-liqueurs
#9
Gabriele Serreli, Igor Jerković, Katarzyna Angelika Gil, Zvonimir Marijanović, Viviana Pacini, Carlo Ignazio Giovanni Tuberoso
The aim of this research was to evaluate the antioxidant capacity and physical-chemical characteristics of commercial white myrtle berry (Myrtus communis L. var. leucocarpa DC) liqueur (WMBL). The total phenolic (TP) content was measured spectrophotometrically, applying a modified Folin-Ciocalteu's method, and phenolic compounds were identified by high-performance liquid chromatography (HPLC) coupled with electrospray mass spectrometry, and quantified by HPLC coupled with ultraviolet/visible detection. The antioxidant capacities were evaluated by FRAP, CUPRAC, DPPH(•), and ABTS(•+) assays...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28421300/functional-teas-from-the-leaves-of-arbutus-unedo-phenolic-content-antioxidant-activity-and-detection-of-efficient-radical-scavengers
#10
Ioannis Erkekoglou, Nikolaos Nenadis, Efrosini Samara, Fani Th Mantzouridou
The phenolic content/composition and antioxidant activity of hot/cold infusion and decoction from the leaves of Arbutus unedo were studied for the first time. 1,1-diphenyl-2-picrylhydrazyl (DPPH(●)), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) radical cation (ABTS(●+)), crocin-bleaching, copper-reducing, and liposome accelerated oxidation assays were used for the evaluation of the activity in vitro. In vivo, the extracts were examined for their ability to protect S. cerevisiae cells from H2O2 induced oxidative stress...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28401378/protective-effect-of-juglans-regia-l-walnut-extract-against-oxidative-dna-damage
#11
Cinzia Calcabrini, Roberta De Bellis, Umberto Mancini, Luigi Cucchiarini, Vilberto Stocchi, Lucia Potenza
Walnuts (Juglans regia L.) are relevant components of the Mediterranean diet providing important macronutrients, micronutrients and other bioactive constituents including unsaturated fatty acids, proteins, fiber, vitamins, minerals, phytosterols and polyphenols. Although the walnut beneficial effects in human health are widely recognized by a lot of epidemiologic studies very little is known regarding its effect on damaged DNA. The aim of the present study was to investigate the effect of Juglans regia L. ethanolic extract from kernel on the induction of DNA strand breaks by thiol/Fe(3+)/O2 mixed function oxidase, tert-butyl hydroperoxide or UVC radiations in acellular and cellular models...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28391410/influence-of-the-form-of-administration-of-chlorogenic-acids-on-oxidative-stress-induced-by-high-fat-diet-in-rats
#12
G Budryn, D Zaczyńska, D Żyżelewicz, J Grzelczyk, Z Zduńczyk, J Juśkiewicz
Green coffee is one of health-promoting supplements of the diet, applied in the form of either preparations or enriched food products. Its positive impact is manifested by mitigation of the development of certain tumors, e.g., in the colon and liver, and type 2 diabetes. Many studies proved that chlorogenic acids are the main active substances in green coffee. The bioavailability of these compounds depends among others on their interactions with other components of the diet, mainly proteins. When they are used as food ingredients, their bioavailability is additionally decreased because of the decomposition or interactions with other ingredients during food processing...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28357537/influence-of-cooking-conditions-on-carotenoid-content-and-stability-in-porridges-prepared-from-high-carotenoid-maize
#13
Joana Díaz-Gómez, Antonio Javier Ramos, Changfu Zhu, Olga Martín-Belloso, Robert Soliva-Fortuny
Maize is a staple food crop in many developing countries, hence becoming an attractive target for biofortification programs toward populations at risk of micronutrient deficiencies. A South African white endosperm maize inbred line was engineered with a carotenogenic mini-pathway to generate high-carotenoid maize, which accumulates β-carotene, lutein and zeaxanthin. As maize porridge is a traditional meal for poor populations in sub-Saharan African countries, high-carotenoid maize was used as raw material to prepare different maize meals...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28353095/selenoamino-acid-enriched-green-pea-as-a-value-added-plant-protein-source-for-humans-and-livestock
#14
Farzaneh Garousi, Éva Domokos-Szabolcsy, Mihály Jánószky, Andrea Balláné Kovács, Szilvia Veres, Áron Soós, Béla Kovács
Selenium deficiency in various degrees affects around 15% of the world's population, contributing to a variety of health problems. In this study, we examined the accumulation and biotransformation of soil applied Se-supplementation (sodium selenite and sodium selenate forms) at different concentrations, along with growth and yield formation of green pea, in a greenhouse experiment. Biotransformation of inorganic Se was evaluated using HPLC-ICP-MS for Se-species separation in the above ground parts of green pea...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28303364/effects-of-pomegranate-juice-on-cardiovascular-risk-factors-in-patients-with-metabolic-syndrome-a-double-blinded-randomized-crossover-controlled-trial
#15
Hossein Moazzen, Mohammad Alizadeh
The aim of this study is to investigate the simultaneous effect of pomegranate juice on components of the metabolic syndrome, including high sensitive C-reactive protein (hs-CRP) as an inflammatory index and glycemic and lipid profile indices in patients with metabolic syndrome. In a double- blind 2*2 crossover study, 30 individuals suffering from metabolic syndrome received a daily dose of 500 mL pomegranate juice for a period of one week. After one week of wash out period, they received a placebo for one week...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28161879/effect-of-inulin-on-the-viability-of-l-plantarum-during-storage-and-in-vitro-digestion-and-on-composition-parameters-of-vegetable-fermented-juices
#16
Estefanía Valero-Cases, María José Frutos
The prebiotic effect of different concentrations of inulin (0, 1 and 2%) on the growth and survival of Lactobacillus plantarum (LP) CECT 220 in blended carrot and orange juices was investigated after 24 h of fermentation, during 30 days of storage at 4 °C and through the phases of gastrointestinal digestion after different storage periods. Microbiological and chemical determinations were also carried out in all juices. The lactic fermentation increased the shelf life of the fermented juices with inulin...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28161878/enhydrin-regulates-postprandial-hyperglycemia-in-diabetic-rats-by-inhibition-of-%C3%AE-glucosidase-activity
#17
C Serra-Barcellona, N C Habib, S M Honoré, S S Sánchez, S B Genta
During the last few years, numerous attempts were made to identify effective α-glucosidase inhibitors from natural sources in order to develop new alternatives for diabetes management. Smallanthus sonchifolius (yacon) leaves were found to be effective in controlling postprandial hyperglycemia. Enhydrin, a constituent of yacon leaves, was noted for its significant hypoglycemic properties in diabetic rats. These properties were also demonstrated for yacon leaves decoction, which is rich in phenolic compounds such as chlorogenic acid and its derivatives...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28120142/vacuum-drying-for-extending-litchi-shelf-life-vitamin-c-total-phenolics-texture-and-shelf-life-assessment
#18
Felipe Richter Reis, Aline Caroline de Oliveira, Gabriella Giani Pieretti Gadelha, Marcela Breves de Abreu, Hillary Isabelle Soares
In an attempt to obtain shelf-stable litchi fruit with preserved nutritional quality and good sensory features, quarters of peeled and pitted fruits were vacuum dried at 50, 60 and 70 °C at a constant pressure of 8.0 kPa. The product was assessed for its vitamin C, total phenolics and texture (hardness). In addition, the product with the best texture was assessed for its shelf-life by means of accelerated testing. Results suggest that vacuum dried litchi retained almost 70% of the vitamin C and total phenolics when compared to frozen fruits (control)...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28108883/rapid-solid-liquid-dynamic-extraction-rslde-a-new-rapid-and-greener-method-for-extracting-two-steviol-glycosides-stevioside-and-rebaudioside-a-from-stevia-leaves
#19
Monica Gallo, Manuela Vitulano, Anna Andolfi, Marina DellaGreca, Esterina Conte, Martina Ciaravolo, Daniele Naviglio
Stevioside and rebaudioside A are the main diterpene glycosides present in the leaves of the Stevia rebaudiana plant, which is used in the production of foods and low-calorie beverages. The difficulties associated with their extraction and purification are currently a problem for the food processing industries. The objective of this study was to develop an effective and economically viable method to obtain a high-quality product while trying to overcome the disadvantages derived from the conventional transformation processes...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28102511/some-nutritional-characteristics-of-enzymatically-resistant-maltodextrin-from-cassava-manihot-esculenta-crantz-starch
#20
Rocío Toraya-Avilés, Maira Segura-Campos, Luis Chel-Guerrero, David Betancur-Ancona
Cassava (Manihot esculenta Crantz) native starch was treated with pyroconversion and enzymatic hydrolysis to produce a pyrodextrin and an enzyme-resistant maltodextrin. Some nutritional characteristics were quantified for both compounds. Pyroconversion was done using a 160:1 (p/v) starch:HCl ratio, 90 °C temperature and 3 h reaction time. The resulting pyrodextrin contained 46.21% indigestible starch and 78.86% dietary fiber. Thermostable α-amylase (0.01%) was used to hydrolyze the pyrodextrin at 95 °C for 5 min...
June 2017: Plant Foods for Human Nutrition
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