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https://www.readbyqxmd.com/read/28548622/fungal-contamination-in-green-coffee-beans-samples-a-public-health-concern
#1
Carla Viegas, Cátia Pacífico, Tiago Faria, Ana Cebola de Oliveira, Liliana Aranha Caetano, Elisabete Carolino, Anita Quintal Gomes, Susana Viegas
Studies on the microbiology of coffee cherries and beans have shown that the predominant toxigenic fungal genera (Aspergillus and Penicillium) are natural coffee contaminants. The aim of this study was to investigate the distribution of fungi in Coffea arabica L. (Arabica coffee) and Coffea canephora L. var. robusta (Robusta coffee) green coffee samples obtained from different sources at the pre-roasting stage. Twenty-eight green coffee samples from different countries of origin (Brazil, Timor, Honduras, Angola, Vietnam, Costa Rica, Colombia, Guatemala, Nicaragua, India, and Uganda) were evaluated...
May 26, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28534842/rapid-prediction-of-moisture-content-in-intact-green-coffee-beans-using-near-infrared-spectroscopy
#2
Adnan Adnan, Dieter von Hörsten, Elke Pawelzik, And Daniel Mörlein
Moisture content (MC) is one of the most important quality parameters of green coffee beans. Therefore, its fast and reliable measurement is necessary. This study evaluated the feasibility of near infrared (NIR) spectroscopy and chemometrics for rapid and non-destructive prediction of MC in intact green coffee beans of both Coffeaarabica (Arabica) and Coffeacanephora (Robusta) species. Diffuse reflectance (log 1/R) spectra of intact beans were acquired using a bench top Fourier transform NIR instrument. MC was determined gravimetrically according to The International Organization for Standardization (ISO) 6673...
May 19, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28521987/coffee-grounds-as-filler-for-pectin-green-composites-with-competitive-performances-dependent-on-the-uv-irradiation
#3
Vincenzo Alessandro Cataldo, Giuseppe Cavallaro, Giuseppe Lazzara, Stefana Milioto, Filippo Parisi
Novel composite bioplastics were successfully prepared by filling pectin matrix with treated coffee grounds. The amount of coffee dispersed into the pectin was changed within a wide filler range. The morphology of the pectin/coffee hybrid films was studied by microscopic techniques in order to investigate their mesoscopic structure as well as the sizes distribution of the particles dispersed into the matrix. The micrographs showed that the coffee grounds are uniformly dispersed within the polymeric matrix. The morphological characteristics of the biocomposite films were correlated to their properties, such as wettability, water uptake, thermal behavior and mechanical performances...
August 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28506698/antiproliferative-and-cytotoxic-effects-of-green-coffee-and-yerba-mate-extracts-their-main-hydroxycinnamic-acids-methylxanthine-and-metabolites-in-different-human-cell-lines
#4
M Amigo-Benavent, S Wang, R Mateos, B Sarriá, L Bravo
This work aimed at studying the effects of green coffee bean (GCBE) and yerba mate (YME) extracts, their main phenolic components (5-caffeoylquinic acid, 5-CQA; 3,5-dicaffeoylquinic acid, 3,5-DCQA) and metabolites (ferulic acid, FA; caffeic acid, CA; dihydrocaffeic acid, DHCA; and dihydroferulic acid, DHFA) along with caffeine (CAF) on the viability and proliferation of different human cell lines. Extracts (10-1000 μg/mL) and standards (10-1000 μM) were assayed in colon (Caco-2), lung (A549), oesophageal (OE-33), urinary bladder (T24) human carcinoma cells, and a non-cancer cell line (CCD-18Co)...
May 12, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28496121/zno-c-core-shell-microspheres-derived-from-spent-coffee-grounds-as-applicable-non-precious-electrode-material-for-dmfcs
#5
Zafar Khan Ghouri, Saeed Al-Meer, Nasser A M Barakat, Hak Yong Kim
Although numerous reports have introduced non precious electrocatalysts for methanol oxidation, most of those studies did not consider the corresponding high onset potential which restricts utilization in real fuel cells. In this study, an -90 mV [vs. Ag/AgCl] onset potential non-precious electrocatalyst is introduced as an applicable anode material for the direct methanol fuel cells. Moreover, the proposed material was prepared from a cheap and abundantly existing resource; the spent coffee grounds. Typically, the spent coffee grounds were facilely converted to core@shell (ZnO@C) microspheres through a two-step approach, involving chemical activation and a subsequent calcination at temperature of 700 °C...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28470499/coffee-its-roasted-form-and-their-residues-cause-birth-failure-and-shorten-lifespan-in-dengue-vectors
#6
Hamady Dieng, Salbiah Binti Ellias, Tomomitsu Satho, Abu Hassan Ahmad, Fatimah Abang, Idris Abd Ghani, Sabina Noor, Hamdan Ahmad, Wan Fatma Zuharah, Ronald E Morales Vargas, Noppawan P Morales, Cirilo N Hipolito, Siriluck Attrapadung, Gabriel Tonga Noweg
In dengue mosquitoes, successful embryonic development and long lifespan are key determinants for the persistence of both virus and vector. Therefore, targeting the egg stage and vector lifespan would be expected to have greater impacts than larvicides or adulticides, both strategies that have lost effectiveness due to the development of resistance. Therefore, there is now a pressing need to find novel chemical means of vector control. Coffee contains many chemicals, and its waste, which has become a growing environmental concern, is as rich in toxicants as the green coffee beans; these chemicals do not have a history of resistance in insects, but some are lost in the roasting process...
May 3, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28429922/effect-modification-of-green-tea-on-the-association-between-rice-intake-and-the-risk-of-diabetes-mellitus-a-prospective-study-in-japanese-men-and-women
#7
Akie Hirata, Keizo Ohnaka, Naotaka Tashiro, Zhenjie Wang, Michiko Kohno, Chikako Kiyohara, Suminori Kono, Ryoichi Takayanagi
BACKGROUND AND OBJECTIVES: Recent observational studies have suggested a positive association of white rice and protective associations of green tea and coffee with the risk of diabetes. However, none have examined the interaction between these dietary factors on the risk of diabetes. We prospectively investigated the effect modification of green tea and coffee on the association between rice and incident diabetes in elderly Japanese men and women. METHODS AND STUDY DESIGN: Among subjects who participated in the baseline survey (2004-2007), 11717 (91 %) subjects responded to the follow-up survey (2010-2012)...
May 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28420078/natural-phenol-polymers-recent-advances-in-food-and-health-applications
#8
REVIEW
Lucia Panzella, Alessandra Napolitano
Natural phenol polymers are widely represented in nature and include a variety of classes including tannins and lignins as the most prominent. Largely consumed foods are rich sources of phenol polymers, notably black foods traditionally used in East Asia, but other non-edible, easily accessible sources, e.g., seaweeds and wood, have been considered with increasing interest together with waste materials from agro-based industries, primarily grape pomace and other byproducts of fruit and coffee processing. Not in all cases were the main structural components of these materials identified because of their highly heterogeneous nature...
April 14, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28395826/identification-of-biochemical-features-of-defective-coffea-arabica-l-beans
#9
María I Casas, Michael J Vaughan, Pierluigi Bonello, Brian McSpadden Gardener, Erich Grotewold, Ana P Alonso
Coffee organoleptic properties are based in part on the quality and chemical composition of coffee beans. The presence of defective beans during processing and roasting contribute to off flavors and reduce overall cup quality. A multipronged approach was undertaken to identify specific biochemical markers for defective beans. To this end, beans were split into defective and non-defective fractions and biochemically profiled in both green and roasted states. A set of 17 compounds in green beans, including organic acids, amino acids and reducing sugars; and 35 compounds in roasted beans, dominated by volatile compounds, organic acids, sugars and sugar alcohols, were sufficient to separate the defective and non-defective fractions...
May 2017: Food Research International
https://www.readbyqxmd.com/read/28391664/effect-of-green-tea-added-tablets-on-volatile-sulfur-containing-compounds-in-the-oral-cavity
#10
Pier Francesco Porciani, Simone Grandini
OBJECTIVES: A controlled, clinical, double-blind, cross-over study was conducted to assess the efficacy of sugar-free tablets containing green tea extract on oral volatile sulfur-containing compounds (VSC) versus placebo tablets for 30 minutes. METHODS: To join the study, subjects had to have at least 24 teeth, no report of oral and systemic diseases, and no removable dentures. All eligible participants had to avoid professional oral hygiene and drugs for two weeks, to not be menstruating, to avoid brushing their teeth and tongue, to not smoke, to not consume alcohol, coffee or tea, nor onion, garlic, or licorice for six hours before the test...
December 2016: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/28391515/the-potential-effects-of-chlorogenic-acid-the-main-phenolic-components-in-coffee-on-health-a-comprehensive-review-of-the-literature
#11
REVIEW
Narges Tajik, Mahboubeh Tajik, Isabelle Mack, Paul Enck
Chlorogenic acid (CGA), an important biologically active dietary polyphenol, is produced by certain plant species and is a major component of coffee. Reduction in the risk of a variety of diseases following CGA consumption has been mentioned in recent basic and clinical research studies. This systematic review discusses in vivo animal and human studies of the physiological and biochemical effects of chlorogenic acids (CGAs) on biomarkers of chronic disease. We searched PubMed, Embase, Amed and Scopus using the following search terms: ("chlorogenic acid" OR "green coffee bean extract") AND (human OR animal) (last performed on April 1st, 2015) for relevant literature on the in vivo effects of CGAs in animal and human models, including clinical trials on cardiovascular, metabolic, cancerogenic, neurological and other functions...
April 8, 2017: European Journal of 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...
April 8, 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28390483/transferring-results-from-nir-hyperspectral-to-nir-multispectral-imaging-systems-a-filter-based-simulation-applied-to-the-classification-of-arabica-and-robusta-green-coffee
#13
Rosalba Calvini, Jose Manuel Amigo, Alessandro Ulrici
Due to the differences in terms of both price and quality, the availability of effective instrumentation to discriminate between Arabica and Robusta coffee is extremely important. To this aim, the use of multispectral imaging systems could provide reliable and accurate real-time monitoring at relatively low costs. However, in practice the implementation of multispectral imaging systems is not straightforward: the present work investigates this issue, starting from the outcome of variable selection performed using a hyperspectral system...
May 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28378296/associations-between-dietary-patterns-socio-demographic-factors-and-anthropometric-measurements-in-adult-new-zealanders-an-analysis-of-data-from-the-2008-09-new-zealand-adult-nutrition-survey
#14
K L Beck, B Jones, I Ullah, S A McNaughton, S J Haslett, W Stonehouse
PURPOSE: To investigate associations between dietary patterns, socio-demographic factors and anthropometric measurements in adult New Zealanders. METHODS: Dietary patterns were identified using factor analysis in adults 15 years plus (n = 4657) using 24-h diet recall data from the 2008/09 New Zealand Adult Nutrition Survey. Multivariate regression was used to investigate associations between dietary patterns and age, gender and ethnicity. After controlling for demographic factors, associations between dietary patterns and food insecurity, deprivation, education, and smoking were investigated...
April 4, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28372210/a-rapid-atr-ftir-spectroscopic-method-for-detection-of-sibutramine-adulteration-in-tea-and-coffee-based-on-hierarchical-cluster-and-principal-component-analyses
#15
Nur Cebi, Mustafa Tahsin Yilmaz, Osman Sagdic
Sibutramine may be illicitly included in herbal slimming foods and supplements marketed as "100% natural" to enhance weight loss. Considering public health and legal regulations, there is an urgent need for effective, rapid and reliable techniques to detect sibutramine in dietetic herbal foods, teas and dietary supplements. This research comprehensively explored, for the first time, detection of sibutramine in green tea, green coffee and mixed herbal tea using ATR-FTIR spectroscopic technique combined with chemometrics...
August 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28364872/association-between-pelvic-organ-prolapse-and-climacteric-symptoms-in-postmenopausal-women
#16
Angelo Cagnacci, Federica Palma, Antonella Napolitano, Anjeza Xholli
OBJECTIVE: To evaluate whether climacteric symptoms are related to pelvic organ prolapse (POP) in postmenopausal women. STUDY DESIGN: A cross-sectional investigation was performed on 1382 postmenopausal women attending an outpatient service for menopause at a university hospital. MAIN OUTCOME MEASURES: Data regarding climacteric symptoms, as captured by the Greene Climacteric Scale, and objective POP were retrieved from an electronic database...
May 2017: Maturitas
https://www.readbyqxmd.com/read/28301290/production-of-a-halotolerant-biofilm-from-green-coffee-beans-immobilized-on-loofah-fiber-luffa-cylindrica-and-its-effect-on-phenanthrene-degradation-in-seawater
#17
Sonia Acosta-Rubí, Araceli Tomasini Campocosio, María Del Carmen Montes-Horcasitas, Liliana Quintanar-Vera, Fernando Esparza-García, Refugio Rodríguez-Vázquez
A biofilm developed from low quality green coffee beans was tested for its capacity to degrade the polynuclear aromatic hydrocarbon (PAH), phenanthrene (Phe), in seawater. Microorganisms were immobilized on two types of Luffa cylindrica (with three and four placental cavities), and the effects of moisture content (20, 30 and 40% of water holding capacity) and particle size (<0.42 mm, 0.42-0.86 mm and 0.86-2.0 mm) of green coffee beans on microbial activity were considered. Biofilm growth determined by respirometry showed a highest microbial activity at a moisture content of 40% and particle size of 0...
March 16, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28290294/behavior-of-yeast-inoculated-during-semi-dry-coffee-fermentation-and-the-effect-on-chemical-and-sensorial-properties-of-the-final-beverage
#18
Luciana Silva Ribeiro, Maria Gabriela da Cruz Pedrozo Miguel, Suzana Reis Evangelista, Pamela Mynsen Machado Martins, Joshua van Mullem, Maisa Honorio Belizario, Rosane Freitas Schwan
Pulped Mundo Novo and Ouro Amarelo coffee beans were inoculated with Saccharomyces cerevisiae (CCMA 0200 and CCMA 0543) during semi-dry coffee fermentation and compared with a non-inoculated control. Samples were collected throughout the fermentation process (12days) to evaluate the persistence of the inoculum by Real-Time quantitative PCR (qPCR). Also, the chemical composition of the beans was determined by HPLC and GC-MS and the roasted beans were sensorial evaluated using the cupping test. S. cerevisiae CCMA 0543 had an average population of 5...
February 2017: Food Research International
https://www.readbyqxmd.com/read/28283450/molecular-modification-of-native-coffee-polysaccharide-using-subcritical-water-treatment-structural-characterization-antioxidant-and-dna-protecting-activities
#19
Adane Tilahun Getachew, Byung Soo Chun
Polysaccharides are an abundant resource in coffee beans and have proved to show numerous bioactivities. Despite their abundance, their activities are not always satisfactory mostly due to their structure and large molecular size. Molecular modifications of native polysaccharides can overcome this problem. In this study, we used a novel and green method to modify native coffee polysaccharides using subcritical water (SCW) treatment. The SCW treatment was used at the temperature of 180°C-220°C and pressure of 30-60bar...
June 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28274052/efficacy-of-natural-and-allopathic-antimicrobial-agents-incorporated-onto-guided-tissue-regeneration-membrane-against-periodontal-pathogens-an-in-vitro-study
#20
Neha Mehrotra, Ajay Reddy Palle, Rajani Kumar Gedela, Sanjay Vasudevan
INTRODUCTION: Periodontal disease is one of the most prevalent afflictions worldwide. It is an infection of the periodontium as a result of subgingival colonization of the specific microbiota, leading to loss of attachment, which requires optimal care for regeneration to its pre-disease state. Guided Tissue Regeneration (GTR) is one of the successful treatment modalities in Periodontal Regenerative Therapy, but is vulnerable to bacterial colonization. The conflict between usage of classical antibiotics and plant origin antimicrobial agents has recently been in the limelight...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
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