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https://www.readbyqxmd.com/read/28322947/cacao-pod-husks-as-a-source-of-low-methoxyl-highly-acetylated-pectins-able-to-gel-in-acidic-media
#1
Lúcia Cristina Vriesmann, Carmen Lúcia de Oliveira Petkowicz
Cacao pod husks, the main by-product from cocoa production, have been investigated for pectin isolation. In the present study, the rheological properties of two low-methoxyl (LM) pectins isolated from cacao pod husks using different extraction conditions were evaluated. One pectin was obtained from optimized conditions employing aqueous nitric acid as an extractant, and the other one was extracted with boiling water. Pectin gels (0.99% galacturonic acid equivalent, w/w) were prepared at pH 2.5-3.0 in the presence of 60% sucrose (w/w) and subjected to rheological analysis...
March 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28299408/differential-gene-expression-of-longan-under-simulated-acid-rain-stress
#2
Shan Zheng, Tengfei Pan, Cuilan Ma, Dongliang Qiu
Differential gene expression profile was studied in Dimocarpus longan Lour. in response to treatments of simulated acid rain with pH 2.5, 3.5, and a control (pH 5.6) using differential display reverse transcription polymerase chain reaction (DDRT-PCR). Results showed that mRNA differential display conditions were optimized to find an expressed sequence tag (EST) related with acid rain stress. The potential encoding products had 80% similarity with a transcription initiation factor IIF of Gossypium raimondii and 81% similarity with a protein product of Theobroma cacao...
March 16, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28288552/microencapsulation-of-theobroma-cacao-l-waste-extract-optimization-using-response-surface-methodology
#3
Taís Vanessa Gabbay Alves, Russany Silva da Costa, Bahar Aliakbarian, Alessandro Alberto Casazza, Patrizia Perego, José Otávio Carréra Silva Júnior, Roseane Maria Ribeiro Costa, Attilio Converti
The cocoa extract (Theobroma cacao L.) has a significant amount of polyphenols (TP) with potent antioxidant activity (AA). This study aims to optimise microencapsulation of the extract of cocoa waste using chitosan and maltodextrin. Microencapsulation tests were performed according to a Box-Behnken factorial design, and the results were evaluated by response surface methodology with temperature, maltodextrin concentration (MD) and extract flowrate (EF) as independent variables, and the fraction of encapsulated TP, TP encapsulation yield, AA, yield of drying and solubility index as responses...
March 13, 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/28273779/concurrent-autoimmune-hepatitis-in-multiple-sclerosis
#4
Gonçalo Cação, Ernestina Santos, Ana Martins Silva
BACKGROUND: Autoimmune hepatitis (AIH) is a rare and chronic inflammatory disorder associated with extrahepatic autoimmune diseases, including, infrequently, multiple sclerosis (MS). Short Reports: We report five cases of MS and AIH association. One patient developed AIH while under interferon beta-1b and the remaining while off disease-modifying therapy, although after methylprednisolone bolus in three. All presented a liver biopsy compatible with AIH. Hepatitis resolution was achieved with immunosuppressive treatment, but one patient died after a fulminant hepatitis requiring liver transplant...
February 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28264305/two-new-eriophyoid-mite-species-trombidiformes-eriophyoidea-from-the-cocoa-tree-and-a-note-on-i-shevtchenkella-i-i-biseta-i-nalepa
#5
Daniela F S Rodrigues, Denise Navia, Anibal R Oliveira, Francisco Ferragut, Carlos H W Flechtmann
Two new eriophyoid mite species are described from the cocoa tree, Theobroma cacao L. (Malvaceae) - the Diptilomiopidae Davisella trevisani n. sp. Rodrigues, Navia & Oliveira, from Brazil; and the Eriophyidae Tetra theobromae n. sp. Rodrigues, Navia & Oliveira, from Costa Rica. The new Davisella species presents an enlarged subcylindrical tubercle bearing pedipalp genual seta d, a novel structure for eriophyoid mites; its functional morphology was discussed. The new Tetra species is the third in this genus described from plants of the Malvaceae...
February 26, 2017: Zootaxa
https://www.readbyqxmd.com/read/28261234/phytophthora-megakarya-and-p-palmivora-causal-agents-of-black-pod-rot-induce-similar-plant-defense-responses-late-during-infection-of-susceptible-cacao-pods
#6
Shahin S Ali, Jonathan Shao, David J Lary, Mary D Strem, Lyndel W Meinhardt, Bryan A Bailey
Phytophthora megakarya (Pmeg) and Phytophthora palmivora (Ppal) cause black pod rot of Theobroma cacao L. (cacao). Of these two clade 4 species, Pmeg is more virulent and is displacing Ppal in many cacao production areas in Africa. Symptoms and species specific sporangia production were compared when the two species were co-inoculated onto pod pieces in staggered 24 h time intervals. Pmeg sporangia were predominantly recovered from pod pieces with unwounded surfaces even when inoculated 24 h after Ppal. On wounded surfaces, sporangia of Ppal were predominantly recovered if the two species were simultaneously applied or Ppal was applied first but not if Pmeg was applied first...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28260703/streptomyces-cameroonensis-sp-nov-a-geldanamycin-producer-that-promotes-theobroma-cacao-growth
#7
Thaddée Boudjeko, Romaric Armel Mouafo Tchinda, Mina Zitouni, Joëlle Aimée Vera Tchatchou Nana, Sylvain Lerat, Carole Beaulieu
The taxonomy of an actinobacterial strain, designated JJY4(T), was established using a polyphasic approach. JJY4(T) was isolated from the rhizosphere of Chromolaena odorata in Yaoundé (Cameroon) during a project for the selection of biological control agents. Strain JJY4(T) exhibited antimicrobial activities against bacteria, fungi, and oomycetes. Strain JJY4(T) also exhibited the traits of plant growth-promoting rhizobacteria such as the solubilization of inorganic phosphate, production of siderophores and indole-3-acetic acid, and 1-aminocyclopropane-1-carboxylate deaminase activity...
March 4, 2017: Microbes and Environments
https://www.readbyqxmd.com/read/28251656/influences-of-superheated-steam-roasting-on-changes-in-sugar-amino-acid-and-flavor-active-components-of-cocoa-bean-theobroma-cacao
#8
Wahidu Zzaman, Rajeev Bhat, Tajul Aris Yang, Azhar Mat Easa
BACKGROUND: Roasting is one of the important unit operations in the cocoa base industries that develop unique flavor in products. Cocoa beans were subjected to roast at different temperature and time using superheated steam. Influence of roasting temperature (150-250 °C) and time (10-50 min) on sugars, free amino acids and volatile flavoring compounds were investigated. RESULTS: The concentration of total reducing sugars was reduced up to 64.61, 77.22 and 82...
March 2, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28208630/cocoa-and-grape-seed-byproducts-as-a-source-of-antioxidant-and-anti-inflammatory-proanthocyanidins
#9
María De La Luz Cádiz-Gurrea, Isabel Borrás-Linares, Jesús Lozano-Sánchez, Jorge Joven, Salvador Fernández-Arroyo, Antonio Segura-Carretero
Phenolic compounds, which are secondary plant metabolites, are considered an integral part of the human diet. Physiological properties of dietary polyphenols have come to the attention in recent years. Especially, proanthocyanidins (ranging from dimers to decamers) have demonstrated potential interactions with biological systems, such as antiviral, antibacterial, molluscicidal, enzyme-inhibiting, antioxidant, and radical-scavenging properties. Agroindustry produces a considerable amount of phenolic-rich sources, and the ability of polyphenolic structures to interacts with other molecules in living organisms confers their beneficial properties...
February 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28192967/direct-analysis-of-xanthine-stimulants-in-archaeological-vessels-by-laser-desorption-resonance-enhanced-multiphoton-ionization
#10
Shawn C Owens, Jacob A Berenbeim, Marshall R Ligare, Lisa E Gulian, Faady M Siouri, Samuel Boldissar, Stuart Tyson-Smith, Gregory Wilson, Anabel Ford, Mattanjah S de Vries
Resonance enhanced multiphoton ionization spectroscopy (REMPI) generates simultaneous vibronic spectroscopy and fragment free mass spectrometry to identify molecules within a complex matrix. We combined laser desorption with REMPI spectroscopy to study organic residues within pottery sherds from Maya vessels (600-900 CE) and Mississippian vessels (1100-1200 CE), successfully detecting three molecular markers, caffeine, theobromine, and theophylline, associated with the use of cacao. This analytical approach provides a high molecular specificity, based on both wavelength and mass identification...
February 15, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28187131/genome-size-cytogenetic-data-and-transferability-of-est-ssrs-markers-in-wild-and-cultivated-species-of-the-genus-theobroma-l-byttnerioideae-malvaceae
#11
Rangeline Azevedo da Silva, Gustavo Souza, Lívia Santos Lima Lemos, Uilson Vanderlei Lopes, Nara Geórgia Ribeiro Braz Patrocínio, Rafael Moysés Alves, Lucília Helena Marcellino, Didier Clement, Fabienne Micheli, Karina Peres Gramacho
The genus Theobroma comprises several trees species native to the Amazon. Theobroma cacao L. plays a key economic role mainly in the chocolate industry. Both cultivated and wild forms are described within the genus. Variations in genome size and chromosome number have been used for prediction purposes including the frequency of interspecific hybridization or inference about evolutionary relationships. In this study, the nuclear DNA content, karyotype and genetic diversity using functional microsatellites (EST-SSR) of seven Theobroma species were characterized...
2017: PloS One
https://www.readbyqxmd.com/read/28186564/phytophthora-megakarya-and-p-palmivora-closely-related-causal-agents-of-cacao-black-pod-rot-underwent-increases-in-genome-sizes-and-gene-numbers-by-different-mechanisms
#12
Shahin S Ali, Jonathan Shao, David J Lary, Brent Kronmiller, Danyu Shen, Mary D Strem, Ishmael Amoako-Attah, Andrew Yaw Akrofi, B A Didier Begoude, G Martijn Ten Hoopen, Klotioloma Coulibaly, Boubacar Ismaël Kebe, Rachel L Melnick, Mark J Guiltinan, Brett M Tyler, Lyndel W Meinhardt, Bryan A Bailey
No abstract text is available yet for this article.
February 10, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28128718/prehispanic-functional-foods-and-nutraceuticals-in-the-treatment-of-dyslipidemia-associated-to-cardiovascular-disease-a-mini-review
#13
Alejandro Ríos-Hoyo, Alejandra Romo-Araiza, Marcos Meneses-Mayo, Gabriela Guttiérrez-Salmeán
Dyslipidemia is an important modifi able risk factor for cardiovascular and metabolic diseases, which are responsible for a large number of mortality and disability cases around the globe. Different strategies have been used within the treatment of dyslipidemia, including lifestyle modifi cations, pharmacologic therapy, as well as functional foods and nutraceuticals. Functional foods have been used worldwide since ancient times, particularly, the prehispanic civilizations utilized several as medicinal foods...
January 27, 2017: International Journal for Vitamin and Nutrition Research. Journal International de Vitaminologie et de Nutrition
https://www.readbyqxmd.com/read/28124143/molecular-characterization-of-previously-elusive-badnaviruses-associated-with-symptomatic-cacao-in-the-new-world
#14
Nomatter Chingandu, Muhammad Zia-Ur-Rehman, Thyail N Sreenivasan, Surendra Surujdeo-Maharaj, Pathmanathan Umaharan, Osman A Gutierrez, Judith K Brown
Suspected virus-like symptoms were observed in cacao plants in Trinidad during 1943, and the viruses associated with these symptoms were designated as strains A and B of cacao Trinidad virus (CTV). However, viral etiology has not been demonstrated for either phenotype. Total DNA was isolated from symptomatic cacao leaves exhibiting the CTV A and B phenotypes and subjected to Illumina HiSeq and Sanger DNA sequencing. Based on de novo assembly, two apparently full-length badnavirus genomes of 7,533 and 7,454 nucleotides (nt) were associated with CTV strain A and B, respectively...
January 25, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28087663/evolution-and-structural-diversification-of-nictaba-like-lectin-genes-in-food-crops-with-a-focus-on-soybean-glycine-max
#15
Sofie Van Holle, Pierre Rougé, Els J M Van Damme
BACKGROUND AND AIMS: The Nictaba family groups all proteins that show homology to Nictaba, the tobacco lectin. So far, Nictaba and an Arabidopsis thaliana homologue have been shown to be implicated in the plant stress response. The availability of more than 50 sequenced plant genomes provided the opportunity for a genome-wide identification of Nictaba-like genes in 15 species, representing members of the Fabaceae, Poaceae, Solanaceae, Musaceae, Arecaceae, Malvaceae and Rubiaceae. Additionally, phylogenetic relationships between the different species were explored...
January 12, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28074613/health-benefits-of-methylxanthines-in-neurodegenerative-diseases
#16
REVIEW
Ainhoa Oñatibia-Astibia, Rafael Franco, Eva Martínez-Pinilla
Methylxanthines (MTXs) are consumed by almost everybody in almost every area of the world. Caffeine, theophylline and theobromine are the most well-known members of this family of compounds; they are present, inter alia, in coffee, tea, cacao, yerba mate and cola drinks. MTXs are readily absorbed in the gastrointestinal tract and are able to penetrate into the central nervous system, where they exert significant psychostimulant actions, which are more evident in acute intake. Coffee has been paradigmatic, as its use was forbidden in many diseases, however, this negative view has radically changed; evidence shows that MTXs display health benefits in diseases involving cell death in the nervous system...
January 11, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28070286/influence-of-hydrological-pathways-on-dissolved-organic-carbon-fluxes-in-tropical-streams
#17
Eline Nayara Dantas da Costa, Jéssica Carneiro de Souza, Marilane Andrade Pereira, Marcelo Friederichs Landim de Souza, Weber Friederichs Landim de Souza, Daniela Mariano Lopes da Silva
Water flow pathways and water balance are fundamental components for understanding the dynamics of C in the soil/water interface of small basins. The objective of this study was to describe the seasonal variations and estimate the annual balance of dissolved organic carbon (DOC) by comparing two tropical microbasins (preserved forest-PF and cacao plantation-CP). Twenty-one weekly collections were conducted from September to December 2012 and from April to June 2013. The calculation of the partial balance considered precipitation (P) as inflow and the stream as outflow...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28070080/%C3%AE-melt-structure-of-1-3-dipalmitoyl-2-oleoyl-sn-glycerol-pop-under-a-thermal-thawing-process-studied-by-infrared-spectroscopy
#18
Hiroharu Yui, Yuuki Isozaki, Toshinori Morisaku
The temperature thawing, as called tempering, of triacylglycerols (TAGs) is an important processing method in food productions, such as chocolates, cream, confections, and spreads. Especially, melt-mediation by temperature thawing is famous in chocolate production for controlling the polymorphic crystalline forms and accelerating crystallization. In the present study, we investigated the α-melt structure of 1,3-dipalmitoyl-2-oleoyl-sn-glycerol (POP), one of the major continuants of cacao butter, under a phase transition from its melt to γ-crystal with in-situ attenuated total reflection-infrared (ATR-IR) spectroscopy...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28039812/fast-non-aqueous-reversed-phase-liquid-chromatography-separation-of-triacylglycerol-regioisomers-with-isocratic-mobile-phase-application-to-different-oils-and-fats
#19
Arnaud W G Tamba Sompila, Sylvie Héron, Dorra Hmida, Alain Tchapla
The distribution of fatty acid species at the sn-1/3 position or the sn-2 position of triacylglycerols (TAGs) in natural fats and oils affects their physical and nutritional properties. In fats and oils, determining the presence of one or two regioisomers and the identification of structure, where they do have one, as well as their separation, became a problem of fundamental importance to solve. A variety of instrumental technics has been proposed, such as MS, chromatography-MS or pure chromatography. A number of studies deal with the optimization of the separation, but very often, they are expensive in time...
January 15, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28028594/major-phytopathogens-and-strains-from-cocoa-theobroma-cacao-l-are-differentiated-by-maldi-ms-lipid-and-or-peptide-protein-profiles
#20
Fábio Neves Dos Santos, Alessandra Tata, Kátia Roberta Anacleto Belaz, Dilze Maria Argôlo Magalhães, Edna Dora Martins Newman Luz, Marcos Nogueira Eberlin
Phytopathogens are the main disease agents that promote attack of cocoa plantations in all tropical countries. The similarity of the symptoms caused by different phytopathogens makes the reliable identification of the diverse species a challenge. Correct identification is important in the monitoring and management of these pests. Here we show that matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) in combination with multivariate data analysis is able to rapidly and reliably differentiate cocoa phytopathogens, namely Moniliophthora perniciosa, Phytophthora palmivora, P...
March 2017: Analytical and Bioanalytical Chemistry
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