scholarly journals Effect of Orange and Cinnamon Oil on the Occurrence and Harmfulness of Thrips tabaci Lind on Onion – Preliminary Results

2016 ◽  
Vol 19 (s1) ◽  
pp. 13-14
Author(s):  
Maria Pobożniak ◽  
Dominika Grabowska ◽  
Marta Olczyk
Keyword(s):  
Research Work ◽  
Thrips Tabaci ◽  
Cinnamomum Zeylanicum ◽  
Cinnamon Oil ◽  
Orange Oil ◽  
Preliminary Results ◽  
The Mean

Abstract The aim of the present research work was to investigate the effect of orange and cinnamon oil on the occurrence and harmfulness of Thrips tabaci Lind on onion. In 2014, the nonchemical treatment was made with Prev-B2 (the concentration of 0.4%), which contains: 4.2% of orange oil, 2.1% of boron and product Canol 70% p/p exstract of Cinnamomum zeylanicum. In 2015, only Prev-B2 product was used. The standard sprayer was used and the treatments were done: twice in 2014 and three times in 2015. The thrips were collected directly from the leaves, using standard sweeping nets. The plants were examined to find the leave damages caused by feeding thrips. In 2014, Thrips tabaci was recorded from 11 June to 19 August, whereas in 2015 from 24 June to 4 August. Over two years of observations, the highest number of thrips was collected from onion growing on control plots (not treated with any preparation). Also, the mean percentage of areas damaged on the onion leaves was significantly higher on control plots than on plots treated with cinnamon oil in 2014 and orange oil in 2015.

scholarly journals Salmonella Heidelberg Strain Responses to Essential Oil Components

2015 ◽  
Vol 4 (5) ◽  
pp. 73 ◽  
Author(s):  
Juliany Rivera Calo ◽  
Christopher A. Baker ◽  
Si Hong Park ◽  
Steven C. Ricke
Keyword(s):  
Foodborne Pathogens ◽  
Food Production ◽  
Antimicrobial Agents ◽  
Health Concern ◽  
Orange Oil ◽  
Major Health ◽  
Minimal Inhibitory Concentrations ◽  
Color Changes ◽  
Different Sources ◽  
Strain Responses

<em>Salmonella</em> are one of the more prominent foodborne pathogens that represent a major health risk to humans. <em>Salmonella </em>serovar Heidelberg strains are increasingly becoming an important public health concern, since they have been identified as one of the primary <em>Salmonella </em>serovars responsible for human outbreaks. Over the years, <em>Salmonella </em>Heidelberg isolates have exhibited higher rates of resistance to multiple antimicrobial agents compared to other <em>Salmonella </em>serovars. Essential oils (EOs) have been widely used as alternatives to chemical-based antimicrobials. In the current research, five EOs were screened to determine their antimicrobial activity against 15 <em>S. </em>Heidelberg strains from different sources. Oils tested were R(+)-limonene, orange terpenes, cold compressed orange oil, trans-cinnamaldehyde and carvacrol. EOs were stabilized in nutrient broth by adding 0.15% (w/v) agar. Tube dilution assays and minimal inhibitory concentrations (MIC) were determined by observing color changes in samples during exposure to EOs. Carvacrol and <em>trans-</em>cinnamaldehyde completely inhibited the growth of <em>S.</em> Heidelberg strains, while R(+)-limonene and orange terpenes did not show any inhibitory activity against the strains tested. Cold compressed orange oil only inhibited growth of two of the strains exhibiting an MIC of 1%. All <em>S</em>. Heidelberg isolates evaluated exhibited similar responses to the respective EOs. The use of all natural antimicrobials such as specific EOs offers the potential to limit the majority of <em>S. </em>Heidelberg isolates that may occur in food production.

Spray-Dried Orange Oil

1988 ◽  
pp. 67-77 ◽  
Author(s):  
Sara J. Risch ◽  
Gary A. Reineccius
Keyword(s):  
Orange Oil ◽  
Spray Dried

scholarly journals Quantitative Identification of Pesticides as Target Compounds and Unknowns by Spectral Deconvolution of Gas Chromatographic/Mass Spectrometric Data

2008 ◽  
Vol 91 (6) ◽  
pp. 1467-1477 ◽  
Author(s):  
Albert Robbat ◽  
Andreas Hoffmann ◽  
Kevin Mac Namara ◽  
Yongli Huang
Keyword(s):  
Mass Spectra ◽  
Internal Standard ◽  
Gas Chromatography Mass Spectrometry ◽  
False Negatives ◽  
Orange Oil ◽  
Complex Samples ◽  
Spectrometric Data ◽  
Lemon Oil ◽  
Quantitative Identification ◽  
Chromatographic Mass

Abstract The results of gas chromatography/mass spectrometry (MS), with Ion Signature Technology, Inc. (North Smithfield, RI) quantitative deconvolution software, are discussed for pesticides identified both as target compounds by using retention and MS data and as unknowns by using only mass spectra. Target compound analysis of 32 pesticides, surrogates, and an internal standard added to lemon oil over a wide concentration range produced precision and accuracy that are well within the acceptable criteria of 25 and 50 for complex samples. When 112 pesticides were added to orange oil and searched as unknowns, 110 of the 112 compounds were correctly identified, with an average pesticide recovery of 101 19. The injection volume of the orange oil fortified with pesticides was selected so that 4 ng per compound was injected on column. No false negatives were found, because ion signals for the 2 unidentified pesticides were not acquired by the instrument in either the standard mixture or the oil. No false positives were detected, although &gt;750 widely different compounds were included in the library search.

scholarly journals Use of Orange Oil Loaded Pectin Films as Antibacterial Material for Food Packaging

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1144 ◽  
Author(s):  
Tanpong Chaiwarit ◽  
Warintorn Ruksiriwanich ◽  
Kittisak Jantanasakulwong ◽  
Pensak Jantrawut
Keyword(s):  
Food Packaging ◽  
Inhibitory Effect ◽  
Physical Structure ◽  
Clear Zone ◽  
Orange Oil ◽  
Percent Elongation ◽  
Significant Difference ◽  
Mango Peel ◽  
Antibacterial Material ◽  
Microwave Assisted Method

This study aims to develop orange oil loaded in thin mango peel pectin films and evaluate their antibacterial activity against Staphylococcus aureus. The mango peel pectin was obtained from the extraction of ripe Nam Dokmai mango peel by the microwave-assisted method. The thin films were formulated using commercial low methoxy pectin (P) and mango pectin (M) at a ratio of 1:2 with and without glycerol as a plasticizer. Orange oil was loaded into the films at 3% w/w. The orange oil film containing P and M at ratio of 1:2 with 40% w/w of glycerol (P1M2GO) showed the highest percent elongation (12.93 ± 0.89%) and the lowest Young’s modulus values (35.24 ± 3.43 MPa). For limonene loading content, it was found that the amount of limonene after the film drying step was directly related to the final physical structure of the film. Among the various tested films, P1M2GO film had the lowest limonene loading content (59.25 ± 2.09%), which may be because of the presence of numerous micropores in the P1M2GO film’s matrix. The inhibitory effect against the growth of S. aureus was compared in normalized value of clear zone diameter using the normalization value of limonene content in each film. The P1M2GO film showed the highest inhibitory effect against S. aureus with the normalized clear zone of 11.75 mm but no statistically significant difference. This study indicated that the orange oil loaded in mango peel pectin film can be a valuable candidate as antibacterial material for food packaging.

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