scholarly journals Biosynthesis and Anti-Mycotoxigenic Activity of Zingiber officinale Roscoe-Derived Metal Nanoparticles

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2290
Author(s):  
Mohamed Raafat ◽  
Ashraf S. A. El-Sayed ◽  
Manal T. El-Sayed
Keyword(s):  
Cell Wall ◽  
Zinc Oxide ◽  
Zingiber Officinale ◽  
Aspergillus Awamori ◽  
Capping Agent ◽  
Zingiber Officinale Roscoe ◽  
Visible Spectra ◽  
Mycotoxigenic Fungi ◽  
Cytoplasmic Content ◽  
Uv Visible

Mycotoxigenic fungi have attracted special attention due to their threat to food security and toxicity to human health. Aqueous extract of Zingiber officinale Roscoe was used as reducing and capping agent for the synthesis of silver (AgNPs), copper (CuNPs), and zinc oxide (ZnONPs) nanoparticles. UV-Visible spectra of the AgNPs, CuNPs, and ZnONPs showed absorption peaks at λmax 416 nm, 472 nm, and 372 nm, respectively. Zeta potential of AgNPs, CuNPs, and ZnONPs were −30.9, −30.4 and −18.4 mV, respectively. ZnONPs showed the highest activity against Aspergillus awamori ZUJQ 965830.1 (ZOI 20.9 mm and MIC 24.7 µg/mL). TEM micrographs of ZnONPs-treated A. awamori showed cracks and pits in the cell wall, liquefaction of the cytoplasmic content, making it less electron-dense. The sporulation and ochratoxin A production of A. awamori was inhibited by ZnONPs in a concentration-dependent pattern. The inhibition percentage of OTA were 45.6, 84.78 and 95.65% for 10, 15, 20 of ZnONPs/mL, respectively.

Synthesis and Investigation of Metals Oxide Pastes Used as Semiconductors Electrode for Dye-sensitized Solar Cells

2021 ◽  
Vol 19 (10) ◽  
pp. 41-46
Author(s):  
Moneer K. Mohsen ◽  
Abdul Salam A. Abdul Rahman ◽  
Nada R. Abdullah ◽  
Ansam A. Hashim
Keyword(s):  
Zinc Oxide ◽  
Solar Cells ◽  
Metal Oxides ◽  
Titanium Oxide ◽  
Dye Sensitized Solar Cells ◽  
Third Generation ◽  
Dye Sensitized ◽  
Visible Spectra ◽  
Uv Visible ◽  
Sensitized Solar Cells

The aim of this research is to prepare some of metal oxides pastes to be used as semi-conductors electrode to manufacture of solar cells devices (third generation). The efficiency of these cells were tested by using these pastes to determine the response and susceptibility of these pastes for adsorbing of photosensitive pigments on their surfaces and pores, Three types of metal oxides such as Titanium oxide, Zinc oxide and Aluminium oxide, were prepared in this research. These pastes were identified by measuring UV-visible spectra and also by microscope instrument. The experiments which have been demonstrated approved the susceptibility and adsorption of these pastes to the photosensitive dyes on their surface and gave conversion efficiency up to 1.64%. In this research, a comparison was made between the pastes that were prepared in laboratory and the imported commercial paste in terms of efficiency.

Infrared and UV-visible spectra of layer semiconductors Gas, GaSe and GaTe

1977 ◽  
Vol 38 (10) ◽  
pp. 1293-1299 ◽  
Author(s):  
U. Giorgianni ◽  
G. Mondio ◽  
P. Perillo ◽  
G. Saitta ◽  
G. Vermiglio
Keyword(s):  
Visible Spectra ◽  
Uv Visible

Молекулярно-клеточные механизмы стресс-протективной активности растительного адаптогенного средства «Кардекаим» на фоне острого эмоционального стресса

2018 ◽  
Vol 81 (2) ◽  
pp. 17-20
Author(s):  
Эльвира Алексеевна Алексеева ◽  
О. Г. Димитров ◽  
Л. Н. Шантанова ◽  
С. М. Николаев ◽  
Е. Н. Карева ◽  
...  
Keyword(s):  
Zingiber Officinale ◽  
Hsp 70 ◽  
Zingiber Officinale Roscoe ◽  
Inula Helenium

Изучены адаптогенные свойства растительного средства «Кардекаим», представляющего собой сухой экстракт из сырья Inula helenium L., Zingiber officinale Roscoe, Elletaria cardamomum (L.) Maton., Caragana spinosa (L.) Wall. ex Hornem. и содержащего в качестве действующих веществ фенольные соединения и терпеноиды. Курсовое превентивное введение кардекаима в дозе 100 мг/кг в течение 7 дней перед острым эмоциональным стрессом оказывает выраженное стресс-протективное действие, препятствуя развитию признаков «триады Селье»: инволюции вилочковой железы (40 %), язвенным повреждениям слизистой оболочки желудка (в 5 раз) и в меньшей степени — гипертрофии надпочечников (p ≤ 0,05), полученный эффект не уступает препарату сравнения — экстракту элеутерококка. Показано, что повышение резистентности к стрессу под влиянием кардекаима сопровождается активацией синтеза белков теплового шока (Hsp-70), не связанной со стресс-индуцированной генерацией NO.

EFEK PENAMBAHAN EKSTRAK AIR JAHE (Zingiber officinale Roscoe) DAN PENYIMPANAN DINGIN TERHADAP MUTU SENSORI IKAN TUNA (Thunnus albacores)

2010 ◽  
Vol 6 (1) ◽  
pp. 36
Author(s):  
Silvana Dinaintang Harikedua
Keyword(s):  
Sensory Quality ◽  
Zingiber Officinale ◽  
The Other ◽  
Ginger Extract ◽  
Other Hand ◽  
Storage Treatment ◽  
Zingiber Officinale Roscoe ◽  
Hedonic Scale ◽  
And Storage

The objective of this study was to investigate the effect of ginger extract addition and refrigerate storage on sensory quality of Tuna through panelist’s perception. Panelists (n=30) evaluated samples for overall appearance and flavor attribute using hedonic scale 1–7. The sample which is more acceptable by panelists on flavor attributes having 3% gingers extract and storage for 3 days. The less acceptable sample on flavor attribute having 0% ginger extract and storage for 9 days. On the other hand, the sample which is more acceptable by panelists on overall appearance having 0% ginger extract without storage treatment. The less acceptable sample on overall appearance having 3% ginger extract and storage for 9 days.

Chemical Composition and Active Properties Evaluation of Wild Oregano (Origanum Vulgare) and Ginger (Zingiber Officinale-Roscoe) Essential Oils

2018 ◽  
Vol 69 (8) ◽  
pp. 1927-1933 ◽  
Author(s):  
Mariana Deleanu ◽  
Elisabeta E. Popa ◽  
Mona E. Popa
Keyword(s):  
Essential Oil ◽  
Growth Inhibition ◽  
Gallic Acid ◽  
Aspergillus Flavus ◽  
Zingiber Officinale ◽  
Penicillium Expansum ◽  
Origanum Vulgare ◽  
Zingiber Officinale Roscoe ◽  
Oregano Oil ◽  
Gallic Acid Equivalent

The compounds in Ginger (Zingiber officinale-Roscoe) essential oil provenience China and wild oregano (Origanum vulgare) essential oil of Romanian origin were identified by GC/MS and their antioxidant and antifungal properties were evaluated. Wild oregano oil was characterized by high content of oxygenated monoterpenes hydrocarbons (84.05%) of which carvacrol was the most abundant (73.85%) followed by b-linalool (3.46%) and thymol (2.29%). Ginger oil had a higher content of sesquiterpene hydrocarbons including zingiberene (31.47%), b-sesquiphellandrene (13.76%), a-curcumene (10.41%), a-farnesene (8.31%) and b-bisabolene (7.55%) but a lower content of oxygenated monoterpenes (7.97%). The high content of oxygenated monoterpens of wild oregano oil is in accordance with total content of polyphenols determined by the Folin�Ciocalteu method (6.71�0.73 mg of gallic acid equivalent per g oil). Ginger oil had only 1.34�0.22 mg gallic acid equivalent per g oil. Wild oregano oils exhibited appreciable in vitro antioxidant activity as assessed by 2, 2`-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging and 2,2�-azino-bis (3 ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS). The sample concentration required to scavenge 50% of the DPPH free radicals was 0.76�0.13 mg/mL for wild oregano oil compared to 20.22�2.12 mg/mL for ginger oil. Also, wild oregano oils showed significant inhibitory activity against selected pathogenic fungi (Fusarium oxysporum, Aspergillus flavus and Penicillium expansum). 1�L of oregano oil is sufficient for almost 75% growth inhibition of Aspergillus flavus compared to ginger oil which shows antifungal activity at 240�L for 78% growth inhibition. It can be concluded that wild oregano oil could be used as food preservative in some food products in which Fusarium oxysporum, Aspergillus flavus and Penicillium expansum could grow and have potential to produce health hazards mycotoxines.

Traditional aspects to sciatic pain and allied therapies from Persian medical reports

2020 ◽  
Vol 17 ◽  
Author(s):  
Ramin Ansari ◽  
Amirhossein Dadbakhsh ◽  
Fatemeh Hasani ◽  
Fatemeh Hosseinzadeh ◽  
Zohreh Abolhassanzadeh ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Zingiber Officinale ◽  
Therapeutic Effects ◽  
School Of Medicine ◽  
Sciatic Pain ◽  
Novel Drugs ◽  
Zingiber Officinale Roscoe ◽  
Medical Reports ◽  
Traditional Persian Medicine ◽  
Increasing Demand

: Sciatica is a common back pain caused by irritation of the sciatic nerve. Current pharmacologic therapies have proven inadequate for many patients with sciatic pain. On the other hand, there is a global increasing demand toward the use and administration of natural medicaments for this disorder. Traditional Persian Medicine (TPM) is a school of medicine and a medicinal plant based resource for clinical studies put forward by Persian scholars. The aim of the present study is to gather and study the effectiveness of all medicinal plants from five main Persian pharmacopeias. Furthermore, different data bases such as PubMed and Scopus have been checked to derive relevant activities for these plants. In all, 99 medicinal plants related to 42 families have been authenticated. Asteraceae and Apiaceae were the most frequent families and Roots and Seeds were the most reported botanical parts. The employed routs of administration were oral (54%), topical (33%) and rectal (13%). Anti-inflammatory, analgesic activity and anti-nociceptive properties of medicines are known as some main mechanisms to manage sciatic pain. These functions are possessed by 30%, 15%, and 15% of the studied plants, respectively. Medicaments that can be introduced as lead agents for further investigation are Zingiber officinale Roscoe, Olea europaea L., Strychnos nux-vomica L and Artemisia vulgaris L which showed all of these properties in previous studies. Hence, conducting adducible clinical trials using these lead agents may lead to novel drugs with lesser undesirable and much more therapeutic effects on controlling sciatic pain.

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