Abstract

Several species of thymus have therapeutic properties, so they are used in traditional medicine. In this work was carried out to synthesize Thymus vulgalis silver nanoparticles (TSNPS) and evaluate antioxidant and antimicrobial activities of TSNPS and T. vulgalis essential oil extract (TEOE). The essential oils analyzed by GC-MS and were characterized. Major compounds of phenol, 2 methyl 5 (1 methylethyle) (CAS), thymol and 1,2 Benzene dicarboxylic acid, 3 nitro (CAS) (48.75%, 32.42% and 8.12%, respectively) were detected. Results demonstrated that the TSNPS gave a highest DPPH radical scavenging activity, it was obtained 97.2 at 1000 ug/ml. TSNPS, Thymus + Hexane (T+H), Thymus + Ethanol (T+E) gave the greatest antimicrobial activity than amoxicillin (AM) and ciprofloxacin (CIP). In conclusion: The essential oil of thymus (Vulgaris) and thymus (Vulgaris) silver nanoparticles can be a good source of natural preservatives as an antioxidant and antimicrobial agents for increasing the shelf life of foodstuffs.

Highlights

  • There are 350 species world wide of the genus Thymus (Figure 1) which belongs to Lamiaceae (Labiatae) family

  • Our results agree with Abd El-Aziz and Yousef (2018), they reported that silver nanoparticles (AgNPS)are spherical with varying size

  • The results showed all extracts had antimicrobial properties on bacteria and yeast in Table 3 and were able to prevent the growth of all microorganisms except Streptococcus pyogenes, it is resistance all extracts, AM and CIP

Read more

Summary

Introduction

There are 350 species world wide of the genus Thymus (Figure 1) which belongs to Lamiaceae (Labiatae) family It is known for its large morphological and chemical variety. Plant extracts for nanoparticles synthesis can be very useful in biological process as it avoids the detailed process of maintaining cell cultures and can. Silver has been known for its inhibitory effect toward several bacterial strains and micro-organisms usually exist in medical and industrial process (Krutyakov et al, 2008). It has been studied with several pathogens such as cancer cells, arthropods vectors infections, cosmetics, medicine and food. Due to the increased demand on natural product by consumers and their willingness to pay for relatively expensive natural foods (Sebranek and Bacus, 2007), the present study was carried out with the

Materials and Methods
Extraction of the essential oil extract
Silver nanoparticles synthesis
The activity of DPPH radical scavenging
Bacterial strains
Antibacterial activity
Results and Discussion
Antioxidant activity
Antimicrobial activity
Conclusion
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call