Study of the pesticides distribution in peel, pulp and paper bag and the safety of pear bagging

Han, Jiaguang; Fang, Ping; Xu, Xia; Li-Zheng, Xue-jiu; Shen, Haitao; Ren, Yiping

doi:10.1016/j.foodcont.2015.02.021

Cited by 18 publications

(3 citation statements)

References 32 publications

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“…Pesticides are chemical compounds that are highly required in agricultural activities, as they are efficient in controlling and eliminating pests, contributing to the maintenance of the quality and yield of agricultural products (Hyland & Laribi, 2017). However, the careless use of these chemicals can contribute negatively on the environment and, thus, consequently, on human health (Abhilash & Singh, 2009;Han et al, 2015;Rowland et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Influence of sucrosis on the degradation of pesticide by white rot fungus

Bermúdez

Farias

Lima

et al. 2021

RSD

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The influence of sucrose on the removal of Paraquat (PQT) in synthetic aqueous medium was evaluated by Phanerochaete chrysosporium. Initially, a toxicity test was performed on plates containing paraquat at concentrations of 1, 5, 10, 20 and 30 mg.L-1. Then, they were carried out in batches - agitated batch (RBA) and sequential batch (RBS). Four reactors were submitted, containing medium with 30 mg.L-1 of paraquat, under a reaction time of 144 h, the reactors being RBA-2 and RBS-2 with the addition of 2 gL-1 of sucrose, and without the adding sucrose to the RBA-0 and RBS-0 reactors. In all reactors, paraquat was removed, but in RBS-0, the best mean removal efficiency was obtained (41.1 ± 0.89%). The best values of apparent speed of degradation (k) were found in reactors with sucrose RBA-2 and RBS-2, 0.015 ± 0.002 h-1 and 0.018 ± 0.002 h-1, respectively, indicating that the addition of sucrose influenced the speed removal of paraquat. It was also verified that the pollutant was not completely removed by adsorption to fungal biomass, which microorganisms predominated in the medium at the end of the treatment, demonstrating their role in the paraquat bioremediation process. Therefore, the addition of sucrose influenced the removal speed of the PQT and COD, but not the removal efficiency.

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Section: Introductionmentioning

confidence: 99%

Influence of sucrosis on the degradation of pesticide by white rot fungus

Bermúdez

Farias

Lima

et al. 2021

RSD

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“…Some studies showed that heating or frying food ingredients with water or oil could reduce significant amounts of pesticide residues [16,17]. However, as fruit crops like apples are routinely consumed in a fresh state, several limited methods such as washing and peeling can be employed for removing the pesticide residues [18]. Thus, for fresh edible fruits, removal efficiencies of pesticide residues using washing and/or peeling treatments should be previously evaluated to consume them safely.…”

Section: Introductionmentioning

confidence: 99%

Effects of cuticular waxes on permeation of fungicides azoxystrobin and chlorothalonil into apples

2019

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Time-dependent permeation characteristics of two fungicides azoxystrobin and chlorothalonil into apples were investigated in the presence and absence of the cuticular waxes. Either apple samples which were subjected to waxremoving treatment or not (raw) were individually submerged in each dilution solution of the tested fungicides for a short time, and some of each submerged sample were then washed in running tap water. All apple samples were incubated under controlled conditions and collected sequentially after 1, 24, and 48 h. The collected apple samples were divided into four tissue parts before fungicide residue analysis: peel, pulp-1, pulp-2, and pulp-3. Most residues of azoxystrobin (70.7-86.4%) in apples were present in the peel, and the residual extents in the pulps increased by removal of cuticular waxes. By washing treatment, 52.3-69.2% of azoxystrobin residues in raw apples were removed. Meanwhile, all chlorothalonil residues were determined in the peel of apples, and their concentrations slightly increased by wax removal. However, significant chlorothalonil residues (84.5-91.1%) were removed by washing the apple surface. Results in this study may be extensively utilized as basic data to understand characteristics of cuticular permeation and translocation of fungicides applied on fruit crops.

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“…Consumer demand for high-quality peaches with no pesticide residue is increasing, but numerous diseases and insect pests make peaches one of the most heavily sprayed crops, and birds can cause serious losses when peaches are not protected. Fruit bagging is a good agricultural practice that can physically exclude pests, prevent disease development, and consequently help reduce the reliance on pesticides that have been widely used for fruit cultivation (Han et al, 2015;Sharma et al, 2014). Fruit bagging can also effectively protect fruit against physical damage from pests and birds.…”

mentioning

confidence: 99%

Effects of Fruit Bagging on Anthocyanin Accumulation and Related Gene Expression in Peach

Ma¹,

Ming²,

Wu³

et al. 2021

J. Amer. Soc. Hort. Sci.

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Fruit bagging is a popular agricultural practice that has been widely used to physically protect fruit. However, the application of fruit bags usually has various effects on fruit quality. In this study, three kinds of paper bags with different colors and transmittance were applied to investigate their effects on the skin coloration and related gene expression of peach (Prunus persica). Our findings showed that bagging treatment inhibited anthocyanin accumulation and the expression of related structural and regulatory genes in the peach pericarp. To a certain extent, the inhibitory effects were negatively correlated with the light transmittance of these paper bags. The expression of MYB10.1 was also suppressed by fruit bagging and was highly consistent with anthocyanin content in peach pericarps, which indicated that MYB10.1 might have a critical role in the light-mediated regulation of anthocyanin production in peach pericarps. These findings further enrich our theoretical knowledge of the regulation of anthocyanin synthesis in peach fruit and provide a theoretical basis for common horticultural practices.

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Study of the pesticides distribution in peel, pulp and paper bag and the safety of pear bagging

Cited by 18 publications

References 32 publications

Influence of sucrosis on the degradation of pesticide by white rot fungus

Influence of sucrosis on the degradation of pesticide by white rot fungus

Effects of cuticular waxes on permeation of fungicides azoxystrobin and chlorothalonil into apples

Effects of Fruit Bagging on Anthocyanin Accumulation and Related Gene Expression in Peach

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