Detection of organophosphate pesticide residues of chili (capsicum annuum l.) in different seasons in Aceh province

Abstract Chili is one of the essential food products that serve as a flavoring ingredient in the diet of the Indonesian people, especially in Aceh province. The analysis was conducted to investigate the safety level of chili sold in traditional markets of Aceh. The analysis was carried out on chili products sold in two different seasons, the rainy season (February, March and October) and the dry season (April, May, and August). Analysis of chili harvested in the rainy season was carried out on six samples from 6 districts. In comparison, analysis on samples sold in the dry season was obtained from 27 samples from 17 districts within Aceh Province. The study was conducted to analyze the pesticide residue of chili, which was traded in the traditional market in Aceh province for pesticides belong to the organophosphate group. Analysis was performed using Gas Chromatography (GC). The results of the analysis showed that in the rainy season, pesticide residue found in 2 districts (Aceh Besar and Bireuen districts). This residue belong to chlorpyrifos (0.74 mg kg−1) and dimethoate (0.61 mg kg−1). Meanwhile, in the dry season, five samples in four districts detected pesticide residues from the organophosphate group. However, only one district (Aceh Tamiang) had pesticide residues exceeding the MRL or more than 3 mg kg−1. The pesticide residue obtained in Aceh Tamiang district is (5.18 mg kg−1) from the profenofos group.

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Stable Isotopes Analysis of Precipitation in Subtropical Plateau of Yunnan

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1010-1012.1059 ◽

2014 ◽

Vol 1010-1012 ◽

pp. 1059-1063

Author(s):

Wei Guan ◽

Tao Fan ◽

Xiu Qin Zhu

Keyword(s):

Stable Isotopes ◽

Rainy Season ◽

Mean Value ◽

Dry Season ◽

Precipitation Line ◽

Stable Isotopic ◽

Different Seasons ◽

Geographical Position ◽

The Mean ◽

The Relationship

To elucidate the relationship between stable isotopes of precipitation (SIP) and the extreme drought in Kunming area, based on the stable isotopes data of the GNIP in Kunming site from 1986 to 2003, the precipitation line equation is brought forward and the seasonal change rule of stable isotopes are discussed. The stable isotopic compositions of precipitation exhibit great diversities in different seasons during to influences of multiple factors, such as monsoon, rainfall amount moisture source and others. The δ18O values in rainwater exhibit significant seasonal variations, the average of-10.12‰ in rainy season, the dry season is-4.5‰, having lower values in the rainy season and higher one in the dry season. The amount effect of precipitation is very distinct, that concealed the temperature effect. Got the special geographical position,dvalues present unique characteristics, the average ofdvalues is 10.78‰ in rainy season, and is 4.86‰ in dry season, the mean value is generally lower than most parts of the world.

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Analisis Profil Konsentrasi Pb di Air Waduk Saguling

Jurnal Rekayasa Hijau ◽

10.26760/jrh.v2i3.2509 ◽

2018 ◽

Vol 2 (3) ◽

Author(s):

Ade Arinda ◽

Eka Wardhani

Keyword(s):

Rainy Season ◽

Government Regulation ◽

Water Reservoir ◽

Secondary Data ◽

Quality Standard ◽

Dry Season ◽

Domestic Waste ◽

Water Based ◽

Different Seasons ◽

And Control

ABSTRAKAir Waduk Saguling saat ini menunjukkan penurunan, baik secara kualitas maupun kuantitas akibat aktivitas manusia yang menghasilkan limbah rumah tangga, industri, pertanian, peternakan, perikanan dan pertambangan. Salah satu pencemar di Waduk Saguling adalah logam berat. Penelitian ini bertujuan menganalisis konsentrasi Pb di perairan Waduk Saguling pada musim yang berbeda. Penelitian ini menggunakan data sekunder yang diperoleh dari PT Indonesia Power tahun 2008-2017. Data berasal dari tiga kedalaman yaitu kedalaman permukaan, tengah, dan dekat dasar perairan. Berdasarkan hasil penelitian menunjukkan konsentrasi Pb di musim kemarau lebih tinggi daripada musim hujan dan sebagian sudah melebihi baku mutu yang mengacu pada Peraturan Pemerintah No. 82 Tahun 2001 tentang Pengelolaan Kualitas Air dan Pengendalian Pencemaran Air untuk logam Pb sebesar 0,03 mg/L. Parameter pendukung yang di analisis yaitu parameter DO, pH, TDS, suhu, kekeruhan, dan kesadahan. Berdasarkan hasil analisis statistik menggunakan PCA, parameter yang paling mempengaruhi konsentrasi Pb di musim kemarau adalah kekeruhan dan suhu sedangkan musim hujan adalah TDS.Kata kunci: Musim, Pb, PCA, Waduk SagulingABSTRACTSaguling Water Reservoir currently shows a decline, both in quality and quantity due to human activities that produce domestic waste, industry, agriculture, livestock, fishery and mining. One of the pollutants in Saguling Reservoir is heavy metal. The research aims to analyze the concentration of Pb in the waters of Saguling Reservoir in different seasons. This research uses secondary data which is obtained from PT Indonesia Power in 2008-2017. The data comes from three depths: surface depth, center, and near bottom of water. Based on the results of the research shows that the concentration of Pb in the dry season is higher than the rainy season and some have exceeded the quality standard which refers to Government Regulation no. 82 of 2001 on the Management of Water Quality and Control of Water Pollution for Pb metal by 0.03 mg/L. The supporting parameters in the analysis are DO, pH, TDS, temperature, turbidity, and hardness parameters. Based on the results of statistical analysis using PCA, the parameters that most influence the concentration of Pb heavy metals in the dry season are turbidity and temperature and rainy season is TDS.Keywords: Season, pb, pca, saguling reservoi

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Characterization of Vietnamese Lacquer Collected in Different Seasons

International Journal of Polymer Science ◽

10.1155/2015/719328 ◽

2015 ◽

Vol 2015 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

Rong Lu ◽

Kenichiro Anzai ◽

Bach Trong Phuc ◽

Tetsuo Miyakoshi

Keyword(s):

Rainy Season ◽

Laccase Activity ◽

Water Concentration ◽

Dry Season ◽

Composition Analysis ◽

Drying Time ◽

Lipid Component ◽

Different Seasons

Vietnamese lacquers collected every month from June to March of next year were characterized. Composition analysis showed that lacquer collected in rainy season contained much water, while those collected in dry season contained more lipid component. Although hardness of lacquer films is not very hard, lacquers tapped in all seasons can reach hard dry (HD) within 48 hours. Refining lacquer can accelerate drying time but the water concentration should be maintained around 10 wt% for laccase activity.

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The Effect of N in Organic + Inorganic Liquid Fertilizer on the Activity Ability and Antioxidant Properties of Tea Shoots (Camellia sinensis L. O. Kuntze) in the Rainy and Dry Season

Agrologia ◽

10.30598/ajibt.v10i1.1294 ◽

2021 ◽

Vol 10 (1) ◽

Author(s):

Zakarias Frans Mores Hukom

Keyword(s):

Antioxidant Activity ◽

Active Ingredient ◽

Rainy Season ◽

Block Design ◽

Antioxidant Properties ◽

Dry Season ◽

Liquid Fertilizer ◽

Nitrogen Levels ◽

Randomized Block Design ◽

Different Seasons

Antioxidant is a term related to the activity ability and properties of the active ingredient. The higher the ability of the antioxidant activity of an active ingredient, the stronger its antioxidant properties are to ward off various free radical compounds due to oxidative stress. The activity ability and antioxidant properties of tea shoots often fluctuate with changing seasons. This study investigated the effect giving nitrogen levels in organic + inorganic liquid fertilizers on the ability of activity and antioxidant properties of tea shoots in different seasons. The experimental design used was a over season complete randomized block design consisting of 5 levels of fertilization concentration in the rainy and dry seasons. The results showed that the application of organic + inorganic liquid fertilizers without the addition of N concentration in the dry season had a significant effect on the antioxidant activity of tea shoots by 88.14%, and 34.15% higher than control plants in the rainy season and 41.81% more. Height of control plants in the dry season. The IC50 value of tea shoots in the rainy season and dry season has very strong antioxidant properties where the order of the antioxidant properties of the control plants < all concentrations of adding N to organic + inorganic liquid fertilizers < concentration of organic + inorganic liquid fertilizers without the addition of N.Keywords: Ability Antioxidant Activity, Organic + Inorganic Liquid Fertilizer, Tea shoots, Antioxidant Properties.

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Contamination Levels of Organochlorine and Organophosphorous Pesticide Residues in Water and Sediment from River Owena, Nigeria

Current Journal of Applied Science and Technology ◽

10.9734/cjast/2019/v34i230119 ◽

2019 ◽

pp. 1-11

Author(s):

Yetunde A. Adeshina ◽

Akinnawo Solomon ◽

Aiyesanmi F. Ademola

Keyword(s):

Water Samples ◽

Pesticide Residues ◽

Rainy Season ◽

Negative Impact ◽

Fish Farming ◽

Dry Season ◽

Sediment Samples ◽

Water And Sediment ◽

Organophosphorous Pesticide ◽

Contamination Levels

River Owena functions as the source of water for the Owena dam which supplies drinking water to the communities in the region, the river also plays an important economic role in irrigation and fish farming in the region. But there has been an indiscriminate used of pesticide because residents of the study area are not well orientated concerning the negative impact of pesticide in the environment. Analysis of organochlorine and organophosphorous pesticide residues was carried out in water and sediment from river Owena, the objective of the research is to determine the contamination levels of organochlorine and organophosphorous pesticide in the water and sediment of river Owena. Analysis was carried out using gas chromatography coupled with electron capture detector in order to identify and quantify the concentration of organochlorine and organophosphorous pesticide in the water and sediment samples from river Owena. Analysis revealed the contamination of water and sediment with organophosphorous pesticide residues at different contamination levels in both dry and rainy season, while a low levels of organochlorine pesticide residues only during the dry season. The TOPP for sediment samples ranges from 1.045mg/L during the dry season and 2.279mg/L during the rainy season, while the TOPP for water samples ranges from 7.163mg/L during the dry season to 7.83mg/L during the rainy season. The TOCP values ranges from 1.288mg/L to 0.015mg/L for sediment and water samples respectively during the dry season, while organochlorine pesticides were not detected during the rainy season. The occurrence and seasonal variation of organophosphorous pesticide residues in river Owena can be attributed to the intense agricultural and urban activities in the vicinity of river Owena.

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Effects of ascorbic acid supplementation on the performance of growing pullets

Nigerian Journal of Animal Production ◽

10.51791/njap.v35i2.2468 ◽

2021 ◽

Vol 35 (2) ◽

pp. 186-194

Author(s):

R. A. Sobayo ◽

E. B. Oguntona ◽

O. A. Osinowo ◽

D. Eruvbetine ◽

A. M. Bamgbose ◽

...

Keyword(s):

Growth Rate ◽

Ascorbic Acid ◽

Rainy Season ◽

Cost Benefit Analysis ◽

Cost Benefit ◽

Dry Season ◽

Different Seasons ◽

Optimum Response ◽

Dietary Treatments ◽

The Cost

Two studies were conducted to evaluate the nutritional effects of supplementary ascorbic acid (AA) at levels of 0, 100, 200, and 300 mg/kg in the diets of growing pullets reared at different seasons (dry season and rainy season).240 eight weeks-old Harco pullet chicks were used in each trial, they were randomly assigned to each of the four dietary treatments in three replications of twenty chicks per replicate. Each trial lasted 12 weeks (84 days) during which data were collected and a 2 X 4 factorial arrangement was employed in the analysis of data collected. Both ascorbic acid and season significantly affected (P<0.05) growth rate with better growth rate reported in the dry season. Body weights at first lay exhibited a linear reduction with increasing concentration of ascorbic acid (P<0.05). Seasonal variation significantly affected (P<0.05) age and egg weight at first lay with higher values obtained in the rainy season. The cost-benefit analysis of supplementary ascorbic acid in the diet of experimental birds revealed that inclusion of the graded levels of ascorbic acid increased the cost of feed in a linear fashion across the dietary treatments. At the growing stage, cost of feed per kg weight gain was found to be lowest in birds fed 0 mg/kg AA. It was evident that at the growing stage, optimum response occurred with supplementation of 300 mg/kg AA.

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Comparative Study of the Chemical Composition of the Essential Oil of Lippia oreganoides Collected in Two Different Seasons in Venezuela

Natural Product Communications ◽

10.1177/1934578x0600100306 ◽

2006 ◽

Vol 1 (3) ◽

pp. 1934578X0600100 ◽

Cited By ~ 5

Author(s):

Janne Rojas ◽

Antonio Morales ◽

Sara Pasquale ◽

Alejandro Márquez ◽

María Rondón ◽

...

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Comparative Study ◽

Essential Oils ◽

Rainy Season ◽

Dry Season ◽

Caryophyllene Oxide ◽

Different Seasons ◽

Made In

The essential oils from the leaves of Lippia oreganoides collected in June 2003 (rainy season) and February 2004 (dry season) were analyzed by GC/MS. Thymol (61.9% and 44.7%, respectively) and carvacrol (7.9% and 16.8%, respectively) proved to be the major constituents of both collections. Linalool (0.4%) was present only in the collection made in June 2003, while carvacryl acetate (0.6% and caryophyllene oxide (1.6%) were only detected in the February 2004 collection.

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Pemuliaan Tanaman Nilam (Progestemon cablin) Lokal Melalui Perkembangbiakan Vegetatif

Bioma Berkala Ilmiah Biologi ◽

10.14710/bioma.18.2.123-130 ◽

2016 ◽

Vol 18 (2) ◽

pp. 123

Author(s):

Hermin Pancasakti Kusumaningrum ◽

Endang Dwi Purbajanti ◽

Agus Setiadi

Keyword(s):

Essential Oil ◽

Vegetative Propagation ◽

Rainy Season ◽

Raw Materials ◽

Climatic Conditions ◽

Dry Season ◽

The Other ◽

Surrounding Area ◽

Local Varieties ◽

Different Seasons

Patchouli essential oil is an dominant product from Batang but its production has not been able to meet export needs. The main problem in the production of essential oil of patchouli is limited amount of seeds and dry season effect on the growth of patchouli. On the other hand, society units of patchouli essential oil is very dependent on the availability of raw materials of patchouli. Searching of patchouli local varieties must develop in order to encourages of sustainibility of patchouli production. The purpose of this activity is search and propagate patchouli plant from local varieties that can survive in different seasons of the year according to the climatic conditions of Batang. The study was conducted with the search and propagation of patchouli plant varieties used by farmers in Batang which is Sidikalang varieties and local varieties originating from Batang region and the surrounding area. Furthermore, the vegetative propagation using cuttings will be use followed by its growth observation during dry and rainy season. Results showed that the activities of patchouli plant local varieties of Bandungan, Kendal and Batang showed the best growth in the dry season. Key words: patchouli, vegetatif growth, essential oil.

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Development, rooting and nodulation of mororó (Bauhinia cheilantha) cuttings harvested in different seasons

Tropical Grasslands - Forrajes Tropicales ◽

10.17138/tgft(8)35-39 ◽

2020 ◽

Vol 8 (1) ◽

pp. 35-39

Author(s):

Amanda Ferreira de Lima ◽

Manuela Menezes Lins ◽

Carla Giselly de Souza ◽

Mércia Virgínia Ferreira dos Santos ◽

Rinaldo Luiz Caraciolo Ferreira ◽

...

Keyword(s):

Root Development ◽

Rainy Season ◽

Major Effect ◽

Dry Season ◽

Mother Plant ◽

Forage Legume ◽

Bud Emergence ◽

Caatinga Vegetation ◽

Tropical Forage ◽

Different Seasons

To increase the establishment options of the tropical forage legume tree, mororó (Bauhinia cheilantha), a native of the Caatinga vegetation in Northeast Brazil, a vegetative propagation study was carried out. In 2 experiments the performance of cuttings taken from 2 different locations on the mother plant (apical and basal branches) was evaluated on 4 different substrates: washed sand (SA); soil (S); soil in a moist chamber (S+MC); and vermiculite (V), in which cuttings were ‘planted’. The variables analyzed were: bud emergence; presence of expanded leaves; length and width of expanded leaves; and development of roots. For the first experiment, cuttings were taken in the dry season (December), for the second experiment in the rainy season (June). Cutting season had the major effect on all variables, particularly emerging buds (37‒90% in the dry vs. 1‒34% in the rainy season) and expanded leaves (23‒60% in the dry vs. 1‒13% in the rainy season). The best results were obtained in substrates S+MC and SA, the latter applying particularly for root development. It seems cuttings can be taken from any part of the mother plant but should be taken in the dry season, when an adequate supply of nutrients exists in the branches. Further studies are warranted to determine how to increase the success of root development on cuttings.

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Chemical composition of faveleira (Cnidoscolus phyllacanthus) seeds collected in different seasons

Revista CERES ◽

10.1590/0034-737x201865030009 ◽

2018 ◽

Vol 65 (3) ◽

pp. 286-290 ◽

Cited By ~ 4

Author(s):

Jovilma Maria Soares de Medeiros ◽

Penha Patrícia Cabral Ribeiro ◽

Erika Paula Silva Freitas ◽

Jéssica Anarellis Barbosa dos Santos ◽

Karla Suzanne Florentino da Silva Chaves Damasceno

Keyword(s):

Chemical Composition ◽

Chemical Analysis ◽

Rainy Season ◽

Nutritional Value ◽

Dry Season ◽

Ash Content ◽

Nutritional Content ◽

Caatinga Vegetation ◽

Significant Difference ◽

Different Seasons

ABSTRACT Cnidoscolus phyllacanthus, popularly known as favela or faveleira, is a species of the caatinga vegetation highly resistant to drought, with high nutritional content, and having several uses. The objective of this work was to evaluate the influence of different seasons on the chemical composition of faveleira seeds in the region of Seridó/RN. The seeds collected in different seasons were separated into 3 lots (lot 1 - rainy season; lot 2 - initial dry season; lot 3 - prolonged dry season), ground, and analyzed for moisture, ash, lipids, protein, and carbohydrates. The chemical analysis the seeds showed predominance of lipids and proteins. The results showed that moisture was significant different (p < 0.05) between all the lots; the ash content in lot 1 was significantly (p < 0.05) lower (4.67 ± 0.18) than lot 3 (4.96 ± 0.08); and protein content was highest in lot 3 (30.42 ± 1.63) and significantly (p < 0.05) different from the others. There was a significant difference (p < 0.05) for lipids between the lots, with lot 2 showing the lowest content (21.57 ± 0.37). Significant difference (p < 0.05) was also found for carbohydrates between the lots, with lot 1 (14.37 ± 1.83) having the lowest content and lot 2 (39.17 ± 0.52) the highest content. The differences observed between the lots are attributed to the harvest of the seeds in different seasonal periods. The results show that the seasonal period influences the nutritional value of faveleira seeds, and that better forms of use need to be identified according to the period of harvesting.

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