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May 24, 2018Open    AccessArticle

Separation and Purification of Ursolic Acid from Cynomorium songaricum Exacts with Macroporous Resins

Xifeng Zhang, Wangxu Hou, Xue Zheng
Enrichment and purification of ursolic acid from Cynomorium songaricum exacts were studied using five macroporous resins. The static tests indicated that D101 resin was appropriate and its adsorption data were well fitted to the Langmuir and Freundlich isotherms. To optimize the separation process, dynamic adsorption and desorption tests were carried out. The op
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Mar 12, 2018Open    AccessArticle

Different Protocols of Physical Training: Effect on Markers of Oxidative Stress in Erythrocytes in Rats

Marcelo Costa-Junior, Wener Barbosa-Resende, Michel Barbosa de Araújo, Rodrigo Augusto Dalia, Leandro Pereira de Moura, Luciana Alves de Medeiros, Lucas Moreira Cunha, Eliete Luciano
The imbalance between oxidant molecules and antioxidant agents is characterized as oxidative stress (OS) and may lead to severe damage to the organism. In contrast, the physical training of aerobic and resistive character promotes increases of the antioxidant response, resulting in a balance and/or minimizing damage. Therefore, the objective of the study is to verify the effect of aerobic training, resistive training and concurren
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Jun 08, 2017Open    AccessArticle

Physicochemical Properties of Edible Seed Hemicelluloses

Felipe Domingos de Sousa, Marjory Lima Holanda-Araújo, José Roberto Rodrigues de Souza, Rafael de Souza Miranda, Rafael Raimundo Almeida, Eneas Gomes-Filho, Nágila Maria Pontes-Ricardo, Ana Cristina Oliveira Monteiro-Moreira, Renato de Azevedo Moreira
In this work, galactomannans and xyloglucans were isolated from the seed endosperm and cotyledon of Brazilian non-conventional sources, respectively. Extraction yields, monosaccharide ratios, macromolecular parameters and molar mass distributions were determined and compared to commercial guar gum and Locust Bean Gum (LBG). The extraction yield in relation to seed mass ranged from 7.0% to 40.63%, with xyloglucan yields being highe
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Apr 27, 2017Open    AccessArticle

Biotransformation of Ephedrine by Whole Cells of Cunnighamella elegans

Rosana Fernanda Hochmüller Fogaca, Vanessa Zafaneli Bergamo, Amanda Zamboni, Monique dos Reis, Bruna Tassi Borile, Maíra Kerpel dos Santos, Adelina Mezzari, Renata Pereira Limberger
Ephedrine biotransformation reactions were performed using strain Cunninghamella elegans in order to obtain products similar to human metabolism products. The choice of strains used was based on previous literature review which identified the species Cunninghamella
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Jun 13, 2016Open    AccessArticle

Applications of Nanotechnology in Reconstructive Surgery

Timothy Varghese
The objective of this review was to critically present and evaluate recent investigations into nanotechnology and it’s applications in reconstructive surgery. In addition, this review aims to looks at a plethora of applications with nanotechnology in the subject area of reconstructive surgery. The Medline and PubMed databases were searched for clinical trial and case report publications dealing with reconstructive surgeries involv
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Dec 30, 2015Open    AccessArticle

Enhancement of Artemisinin in Artemisia annua L. through Induced Mutation

Mutai Raymond, Kinyua Miriam, Kiplagat Oliver, Mutai Edwin, Kimno Stephen
Artemisia annua is the source of artemisinin, an antimalarial drug which is effective against multidrug-resistant strains of plasmodium, the malarial parasite. Malaria has serious effects on morbidity and mortality thus negatively impacting on agricultural production and food security. Although artemisinin has been found to be a useful medicine; its production is very low in comparison with what is actually needed to treat the worldwide threat of malaria. On the other hand, the lower cont...


Nov 17, 2015Open    AccessArticle

Petroleum: From Basic Features to Hydrocarbons Bioremediation in Oceans

Edmo M. Rodrigues, Marcos R. Tótola
This review provides a general overview of petroleum characteristics and bioremediation strategies applications in oceanic environments contaminated with petroleum hydrocarbons during exploration and transportation processes offshore. The vast oil reserves in the offshore fields have been explored for the production of light and heavy oil. The hydrocarbons exhibit very different physicochemical characteristics including those of hydrophobicity, molecular weight, melting and boiling points, toxic...


Sep 14, 2015Open    AccessArticle

Effect of Morphological and Physiological Development on the Acclimatization of in Vitro Plants of Bambusa vulgaris Schrad ex Wendl in Liquid Culture Medium

Yudith Garcia-Ramirez, Mallelyn González-González, Marisol Freire-Seijo, Mariana La O-Cárdenas, Miladys León-Quintana, Berkis Roque-Morales, Eilyn Mena-Méndez, Miladys Francisca Mendoza-Rodriguez, Leonardo Rivero-Quintana
Bambusa vulgaris Schrad. ex Wendl (B. vulgaris) is a species of great interest because it produces the most important non-timber forest products of worldwide. It has become an integral component in social forestry programs. This study aimed to determine the effect of morphological and physiological development on the acclimatization of in vitro plants of B. vulgaris. Morphological and physiological parameters of plants subjected to in vitro conditions were evaluated. ...


Aug 25, 2015Open    AccessArticle

Antioxidant, Total Lycopene, Ascorbic Acid and Microbial Load Estimation in Powdered Tomato Varieties Sold in Dutsin-Ma Market

Godwin Ojochogu Adejo, Francis Akumabi Agbali, Orinya Sandra Otokpa
Tomato varieties sold in Dutsin-Ma market namely, UTC, Rukuta and Dan-Aka were subjected to drying in a laboratory oven, solar drier and under direct sunlight then, powdered. The antioxidant and total lycopene contents were examined and found to be unaffected by the three drying procedures, with values ranging between 68.46% ± 0.90% to 80.77% ± 1.11% and 123.63 to 161.98 mg/kg, respectively. The ascorbic acid was also tested and values were significantly lower in all the samples subjected to sun...


Jun 25, 2015Open    AccessArticle

Microbial Recovery of Gold from Mahd El-Dahab Mine Kingdom of Saudi Arabia

Nora Shenouda Gad, Mahmoud H. Shalaby
This paper considers the use of the yeast Saccharomyces cerevisiae as a biosorbent for the recovery of gold from Mahd El-Dahhab gold mine in Kingdom of Saudi Arabia. Gold is a noble metal which was seldom used in electroplating, hydrogenation catalyst, etc. Heterogeneous composition of samples and low concentration offer renewed interest in the selective extraction of gold using various extractants. In the present work, Saccharomyces cerevisiae, is used to study the preconcentratio...


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