نتایج جستجو برای: assisted solvent extraction musae

تعداد نتایج: 337711  

Journal: :Mycological research 2006
Pedro W Crous Hans-Josef Schroers Johannes Z Groenewald Uwe Braun Konstanze Schubert

Cladosporium musae, a widespread leaf-spotting hyphomycete on Musa spp., is genetically and morphologically distinct from Cladosporium s. str. (Davidiella anamorphs, Mycosphaerellaceae, Dothideales). DNA sequence data derived from the ITS and LSU gene regions of C. musae isolates show that this species is part of a large group of hyphomycetes in the Chaetothyriales with dematiaceous blastoconid...

Hocine Kadi, Patrick Sharrock Ramdane Moussaoui, Sadia Djadoun

In this study, Microwave-Assisted Solvent Extraction (MASE) was used to recover oil residues from pomace olive using acidic hexane. Results obtained demonstrated that oil extraction yield increased with time, the amount of acetic acid in hexane and power radiation. For both radiation powers used (170 and 510W), the optimal extraction time and most interesting content of acetic acid in hexan...

Journal: :International journal of pure and applied sciences 2023

The present study is aimed to examine and compare the storage stability of seed kils extracted form red pepper (Capsicum annuum L.) waste by green techniques (cold pressing, ethanol solvent, ultrasound-assisted solvent extraction). In accordance with this purpose, oil samples were stored for a period 6 weeks at 60°C under accelerated conditions analyzed weekly intervals peroxide, conjugated die...

Journal: :Genetics and molecular research : GMR 2014
M A Intan Sakinah I V Suzianti Z Latiffah

Anthracnose caused by Colletotrichum species is a common postharvest disease of banana fruit. We investigated and identified Colletotrichum species associated with anthracnose in several local banana cultivars based on morphological characteristics and sequencing of ITS regions and of the β-tubulin gene. Thirty-eight Colletotrichum isolates were encountered in anthracnose lesions of five local ...

Journal: :Trends in Food Science and Technology 2021

Curcumin is a safe substance that used as food cosmetic additive and pharmaceutical product. Obtaining pure curcumin from plant sources very important for fundamental research well the above applications. Efficient extraction purification methods, which meet green chemistry criteria including safety, environment-friendliness, economic requirements, process efficiency are needed. This review pro...

Golnar Ahmadi Sana Berijani,

In this work, an environmentally friendly sample pre-treatment method, Ultrasound Assisted Surfactant Enhanced Emulsification Microextraction (UASEME) followed with spectrofluorimetry was performed for determination of oxadiazon residues in water samples. After the determination of the most suitable extraction solvent and its volume, other parameters such as type and concentration of surfac...

2009
Johanna Tollbäck

The work presented in this thesis concerns the development and evaluation of new methods for sampling and analysis of organic pollutants in the indoor and outdoor environment. In Paper I, the development of a new method was reported for the determination of the brominated fl ame retardant tetrabromobisphenol A (TBBPA) in air using sampling with glass fi ber fi lter and polyurethane foam (PUF), ...

Journal: :Molecules 2017
Yue Zhou Jie Zheng Ren-You Gan Tong Zhou Dong-Ping Xu Hua-Bin Li

Mung bean (Vigna radiata) sprout is commonly consumed as a vegetable, while the coat of the germinated mung bean is a waste. In this paper, an ultrasound-assisted extraction method has been developed to extract natural antioxidants from the seed coat of mung bean. Several experimental parameters-which included ethanol concentration, solvent/material ratio, ultrasound extraction time, temperatur...

Journal: :Journal of separation science 2012
Songqing Li Peng Gao Jiaheng Zhang Yubo Li Bing Peng Haixiang Gao Wenfeng Zhou

A novel dispersive liquid-liquid microextraction (DLLME) method followed by HPLC analysis, termed sequential DLLME, was developed for the preconcentration and determination of aryloxyphenoxy-propionate herbicides (i.e. haloxyfop-R-methyl, cyhalofop-butyl, fenoxaprop-P-ethyl, and fluazifop-P-butyl) in aqueous samples. The method is based on the combination of ultrasound-assisted DLLME with in si...

Elham Pournamdari Mohsen Zeeb Sana Berijani

We represent an environmentally friendly sample of pre-treatment method, ultrasound assisted emulsification microextraction (USAEME) followed by gas chromatography nitrogen phosphorous detector (GC-NPD), to specify atrazine residues in environmental samples. Some parameters affecting the extraction efficiency such as the type and volume of the extraction solvent, emulsification time and additio...

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