scholarly journals Antioxidant and Antimicrobial Activities of Rosmarinus officinalis L. Growing Naturally in El-Jabal El-Akhdar Province –Libya and its Effect on Keeping Quality of Cold Serola dumeriri Fillets

2019 ◽  
Vol 10 (2) ◽  
pp. 23-30
Author(s):  
A. Adris ◽  
A. Soultan ◽  
A. Bellail ◽  
Faozia Ibrahim
Keyword(s):  
Antimicrobial Activities ◽  
Rosmarinus Officinalis ◽  
Keeping Quality ◽  
Rosmarinus Officinalis L ◽  
Antioxidant And Antimicrobial Activities

scholarly journals Effect of Ferulic Acid-Grafted-Chitosan Coating on the Quality of Pork during Refrigerated Storage

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1374
Author(s):  
Guotian Wang ◽  
Yunpeng Liu ◽  
Huimin Yong ◽  
Shuai Zong ◽  
Changhai Jin ◽  
...  
Keyword(s):  
Ferulic Acid ◽  
Coupling Reaction ◽  
Thiobarbituric Acid ◽  
Antimicrobial Activities ◽  
Edible Coating ◽  
Thiobarbituric Acid Reactive Substances ◽  
Ph Values ◽  
Basic Nitrogen ◽  
Antioxidant And Antimicrobial Activities

Pork is perishable due to oxidation and microbial spoilage. Edible coating based on biopolymers and phenolic compounds is an effective way to preserve the quality of pork. In this study, ferulic acid-grafted-CS (ferulic acid-g-CS) with strong antioxidant and antimicrobial activities was synthesized through a carbodiimide-mediated coupling reaction. The obtained ferulic acid-g-CS was used as an edible coating material for fresh pork. The effect of ferulic acid-g-CS coating on the quality of pork during storage was investigated at 4 °C for 8 days. As compared to the uncoated pork, pork coated with CS and ferulic acid-g-CS showed lower total viable counts, total volatile basic nitrogen values, pH values, thiobarbituric acid reactive substances, and drip losses. Besides, pork coated with CS and ferulic acid-g-CS presented more compact microstructures than the uncoated pork at the eighth day. Sensory evaluation assay showed pork coated with CS and ferulic acid-g-CS had better color, odor, and over acceptance in comparison with the uncoated pork. Ferulic acid-g-CS coating, due to its relatively higher antioxidant and antimicrobial activities compared to CS coating, had a better performance in refrigerated pork preservation. Ferulic acid-g-CS coating effectively extended the shelf life of refrigerated pork to 7 days. This study revealed ferulic acid-g-CS coating was a promising technology for refrigerated pork preservation.

scholarly journals The effect of natural biostimulators and slow-disintegrating fertilizers on the quality of rosemary seedlings (Rosmarinus officinalis L.)

2007 ◽  
Vol 52 (2) ◽  
pp. 85-94
Author(s):  
Slavica Jelacic ◽  
Damir Beatovic ◽  
Nada Lakic ◽  
Ana Vujosevic
Keyword(s):  
Significant Influence ◽  
Rosmarinus Officinalis ◽  
Rosmarinus Officinalis L ◽  
Different Doses

In the present work the effect of natural biostimulators and different doses of slow disintegrating fertilizer on the quality of rosemary seedlings was studied. Rosemary seedlings were produced in containers, according to the 'speedling system'. During the production of seedlings natural biostimulators Megafol and Viva and microbiological fertilizer Slavol were added. The applied biostimulators made a significant effect on the quality of rosemary seedlings. Different doses of the slow disintegrating fertilizer Scotts (Osmocote Extact) were applied (0, 1, 2, 3 and 4 g/l), which also produced a significant influence.

scholarly journals ALECRIM ( Rosmarinus officinalis L.): PROPRIEDADES ANTIMICROBIANA E QUÍMICA DO ÓLEO ESSENCIAL

2001 ◽  
Vol 19 (2) ◽  
Author(s):  
ALEXANDRE PORTE ◽  
RONOEL LUIZ DE OLIVEIRA GODOY
Keyword(s):  
Essential Oil ◽  
Antimicrobial Properties ◽  
Chemical Properties ◽  
Antimicrobial Activities ◽  
Rosmarinus Officinalis ◽  
Oxygenated Compounds ◽  
Rosemary Oil ◽  
Bacteria And Fungi ◽  
Rosmarinus Officinalis L ◽  
And Chemical Properties

Apresenta breve revisão bibliográfica sobre a composição química e as propriedades antimicrobianas do óleo essencial de alecrim. Enfoca aspectos gerais, usos, atividade contra bactérias e fungos em alimentos e as principais substâncias do óleo de alecrim oriundo de diferentes países. Conclui que os compostos oxigenados são os responsáveis pelas atividades fisiológica e antimicrobiana, mas há discordância sobre os compostos majoritários, ora hidrocarbonetos ora oxigenados. ROSEMARY (Rosmarinus officinalis L.): ESSENTIAL OIL ANTIMICROBIAL AND CHEMICAL PROPERTIES Abstract This article presents a brief review on the chemical composition and antimicrobial properties of the rosemary essential oil. It focuses general features, uses, antimicrobial activity against bacteria and fungi in foods and the major compounds of the rosemary oil from different countries. Concludes that physiologic and antimicrobial activities are due to oxygenated compounds, but there is discordance about the major components if hydrocarbon or oxygenated monoterpenes.

scholarly journals CHEMICAL COMPOSITION OF ESSENTIAL OILS FROM PANTELLERIA ISLAND AUTOCHTHONOUS AND NATURALIZED SPICES AND EVALUATION OF THEIR INDIVIDUAL AND COMBINED ANTIMICROBIAL ACTIVITIES

2019 ◽  
pp. 45-58
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Antimicrobial Activities ◽  
Rosmarinus Officinalis ◽  
Minimum Inhibitory Concentrations ◽  
Food Borne Pathogens ◽  
Food Borne ◽  
Rosmarinus Officinalis L ◽  
Origanum Majorana

In this study, the antimicrobial activity of the essential oils (EOs) from Origanum majorana L. and Rosmarinus officinalis L. growing in Pantelleria (Sicily, Italy) were tested alone and in combination against some prokaryotic and eukaryotic food-borne pathogens. The chemical composition of the EOs as well as the minimum inhibitory concentrations (MIC) against the most sensitive strains were also determined. Both EOs showed interesting antimicrobial effects against all bacteria and yeasts tested. MIC was in the range 1.25–2.50 µl/ml. Interestingly, O. majorana was particularly rich in thymol acetate, while carvacrol was present at very low percentages. Also R. officinalis EOs composition was different from rosemary collected in different areas, as being particularly rich in caryophyllene. Furthermore, the antimicrobial activity of the combination of O. majorana and R. officinalis EOs indicated their potential as food biopreservatives.

scholarly journals Effect of Irrigation Systems and Soil Conditioners on the Growth and Essential Oil Composition of Rosmarinus officinalis L. Cultivated in Egypt

2020 ◽  
Vol 12 (16) ◽  
pp. 6611 ◽  
Author(s):  
Elsayed Omer ◽  
Saber Hendawy ◽  
Abdel Nasser ElGendy ◽  
Alberto Mannu ◽  
Giacomo L. Petretto ◽  
...  
Keyword(s):  
Essential Oil ◽  
Field Experiments ◽  
Growth Parameters ◽  
Irrigation System ◽  
Rosmarinus Officinalis ◽  
Research Station ◽  
Irrigation Systems ◽  
Soil Conditioners ◽  
Rosmarinus Officinalis L

A relevant improvement of the cultivar conditions of Rosmarinus officinalis L. in desert areas was achieved by a specific combination between an irrigation system and soil conditioner. A drastic reduction in water employment was obtained without affecting the quality of the plants, which was determined by monitoring the growth parameters and essential oil characteristics. In particular, the effect of surface and subsurface drip irrigation systems and different soil conditioners on the growth parameters, yield, and essential oil constituents of rosemary plants was assessed. Field experiments at the Agricultural Research Station (Al-Adlya farm), SEKEM Group Company, El-Sharkiya Governorate, Egypt, conducted over the two seasons, revealed the effectiveness of subsurface irrigation systems in obtaining better performances, especially in terms of saving water. The combination of subsurface irrigation and the conditioner HUNDZ soil with bentonite showed the maximum mean values of growth characteristics compared with other soil amendments during both seasons. The possibility to employ a water-saving irrigation system at the subsurface level without any drawback in the resulting plants was also explored in terms of molecular composition. Gas chromatography-mass (GC-MS) analysis of the essential oils extracted from plants grown under different irrigation conditions revealed a comparable composition in both cases. The quality of the system that showed the best performance was also confirmed by the comparable yield of the essential oil.

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