Polydiacetylene-based ammonia sensors as an indicator for meat spoilage at a wide range of food storage temperatures (RT, 4 °C, and −20 °C).

This study aimed to compare the efficacy of plasma-activated water (PAW) generated by two novel plasma reactors against pathogenic foodborne illness organisms.The antimicrobial PAW produced a bubble spark discharge (BSD) reactor and dielectric barrier discharge-diffuser (DBDD) operating at atmospheric conditions with air, multiple frequencies Milli-Q tap water, was investigated model organisms Listeria innocua Escherichia coli in situ. Optimal were subsequently employed for bacteria...

The effect of plasma-activated water (PAW) generated with a dielectric barrier discharge diffusor (DBDD) system on microbial load and organoleptic quality cucamelons was investigated compared to the established sanitizer, sodium hypochlorite (NaOCl). Pathogenic serotypes Escherichia coli, Salmonella enterica, Listeria monocytogenes were inoculated onto surface (6.5 log CFU g-1) into wash (6 mL-1). PAW treatment involved 2 min in situ activated at 1,500 Hz 120 V air as feed gas; NaOCl 100 ppm...

Jasmonates (jasmonic acid or methyl jasmonate) promote stomatal closure in Paphiopedilum Supersuk (RHS, 1973) and P. tonsum (Rchb.f) Stein. Studies on guard cells loaded with pH dependent fluorescent dyes show that jasmonates cause intracellular alkalinization of up to 0.5 units within 5 15 min. Jasmonate-induced always preceded where was not detected no occurred. Propionic inhibited jasmonate-induced closure, suggesting is involved cell movements.

Abstract Amplified fragment length polymorphisms (AFLPs) were used to characterize the genetic diversity within and among natural populations of Sticherus flabellatus . Eight Sydney region New South Wales, Australia surveyed using 11 primer combinations. A total 1108 reproducible bands detected which 469 (42%) polymorphic. F ST estimates averaged over all polymorphic loci indicated that significant genomic differentiation occurs (average = 0.783). Genetic was assessed according average...

The effects of soil type and temperature on the survival a cocktail five Salmonella enterica serotypes (Enteritidis, Infantis, Montevideo, Typhimurium Zanzibar) in manure-amended soils under controlled laboratory conditions was assessed. Containers clay loam or sandy soil, unaltered amended with 2% (w/w) poultry manure, were inoculated S. (~5 log10 CFU per gram) held at 5, 21 37°C for 6 weeks. Statistical analysis persistence identified significant three-way interaction between type, manure...

The ecohealth approach is a core concept integrating environmental aspects with human and animal health (domestic wild animals). Zoonotic emerging diseases affect impact negatively on food security. Although both the risk of contracting disease subsequent impacts vary between different genders, age groups, cultures social conditions, very little research has been done this few guidelines or interventions focus adequately these aspects. This paper based conceptual framework identifying...

SummaryNear-ripe 'Kensington Pride' mango (Mangifera indica L.) fruit with green skin colour generally return lower wholesale and retail prices. Pre-harvest management, especially nitrogen (N) nutrition, appears to be a major causal factor. To obtain an understanding of the extent problem in Burdekin district (dry tropics; production area Australia), mature were harvested from ten orchards ripened at 20 ± 0.5 ° C. Of these orchards, 70% produced more than 25% surface when ripe. The following...

Post-harvest losses in sub-Saharan region Africa are estimated to be about 30% annually. This review examines the vital role which post-harvest management plays of crop farms and mitigation aflatoxin poisoning. The capitalization this offers a cheaper way improving food production subSaharan is drought prone has large extent, seen as insecure. Studies have shown that proper management, especially use small scale metal silo, contributes better quality grains, less pesticide usage can...

Solanesol, the precursor for synthesis of coenzyme Q10, is currently recovered from tobacco leaves by conventional extraction techniques that require multiple purification steps and a large amount organic solvents. We recently identified tomato as an alternative source solanesol hypothesized high-pressure CO2 could be used clean process. The effect pressure temperature on was determined to achieve high yield purity. It found extracted efficiently subcritical at 25 °C leaves. extract...

SummaryField-grown rockmelon plants were treated with -aminobutyric acid (BABA), 2,6-dichloroisonicotinic (INA), benzothiadiazole (BTH) or water during fruit development and evaluated for increased resistance against plant diseases post-harvest pathogens. One experiment was conducted at Camden, NSW, Australia (INA, BABA water). Two experiments Griffith, BTH Growing harvested fruits assessed disease symptoms from natural infections assayed the accumulation of chitinase peroxidase, two major...

Application of chicken manure is commonly practiced in the horticultural industry due to its value as a fertiliser, ability improve soil properties and relatively low cost. An unpleasant odour inherently associated with poultry considered one major limitations applying production land. Odours originating from result combination up 150 compounds including volatile fatty acids, mercaptans, esters, carbonyls, aldehydes, alcohols, ammonia amines. are mainly generated by decomposition faeces,...

SummaryThe efficacy of candidate activators systemic acquired resistance (SAR), Bion® (Syngenta, Basel, Switzerland), Rezist® (Stoller Enterprises, Houston, Texas, USA), and Milsana® (P. J. Margo Pvt. Ltd., Bangalore, India), was evaluated for the control powdery mildew (Podosphaera xanthii) on cucumber zucchini. Each activator significantly reduced incidence disease both crops in a glasshouse, where spore inoculum applied to treated leaves. Both induced increased chitinase activity plants,...

Essential oil fractions from dried seed powder of Piper guineense were analyzed by gas chromatography-mass spectrometry (GC-MS) and evaluated for their insecticidal effects on Sitophilus oryzae L. The GC-MS analysis showed quantitative qualitative differences between the fractions. Chromatographic results revealed chemical constituents like eugenol, piperanol, pinene, carene, copaene with properties. New chemotypes seen in different Instead β-caryophyllene reported literature,...

Leaf blackening on cut flower Protea nerii[olia R. Br. stems was dramatically reduced under a 12-hour photosynthetic light period (120 μmol·m- 2 ·s -1 ) at 25C for 15 days compared with kept in the dark. In light, addition of 0.5% exogenous sugar to vase solution resulted maximum 2.5% leaf blackening, while no had 16.5%. Continuous darkness 94% by day 7, irrespective treatment. Starch and sucrose concentrations were markedly lower leaves dark-held than held light; thus, carbohydrate...

Abstract The modes of action and effectiveness hot water treatment iodine were evaluated integrated with systemic acquired resistance as alternatives to fungicide for the control postharvest rots melon (Cucumis melo). Hot at 55°C reduced storage rot caused by Fusarium sp. inoculated 24h after dipping. Reduction was partly a result host induced from heat shock, indicated increased activity peroxidase. However, germicidal effects water, room temperature, or indicates that most reduction...