Fungicide residues. Part VII. Determination of residues of fentin in vegetables and cocoa products by spectrofluorimetry

The Analyst ◽  
1980 ◽  
Vol 105 (1248) ◽  
pp. 282 ◽  
Author(s):  
P. G. Baker ◽  
D. S. Farrington ◽  
R. A. Hoodless
Keyword(s):  
Fungicide Residues ◽  
Cocoa Products

Determination of the Prospective Processed Cacao Product and Calculation of the Added Value in Agro-Tourism Based on Cacao Agroindustry in Pidie Jaya Regency

2018 ◽  
Vol 22 (1) ◽  
pp. 33-42
Author(s):  
◽  
Tajuddin Bantacut ◽  
Sapta Raharja
Keyword(s):  
System Approach ◽  
Added Value ◽  
Assessment Criteria ◽  
Cocoa Bean ◽  
Cocoa Beans ◽  
Bayes Method ◽  
Cocoa Products ◽  
Processed Products ◽  
Derivative Products

Abstract Utilization of cocoa bean to be a derivative products in industrial is wide enough, that it is necessary to determine the priority of the processed products development. This study aimed to determine the prospective processed cocoa products with a system approach using Bayes method and assessed the potential of added value by using Hayami method. Based on several assessment criteria indicated that chocolate bar is the priority product that needs to be developed and followed by several other processed products. This development was able to produce the added value of Rp 135.000 per kg of cocoa beans. Result indicated that by processing the cocoa beans into chocolate bar could provide a considerable income for the businessman.

Improved Method for the Determination of Ethylenebisdithiocarbamate Residues in Plants, Fruits, and Vegetables

1967 ◽  
Vol 50 (5) ◽  
pp. 1102-1108
Author(s):  
Charles F Gordon ◽  
Richard J Schuckert ◽  
William E Bornak
Keyword(s):  
Sulfuric Acid ◽  
Fruits And Vegetables ◽  
Analytical Procedure ◽  
Improved Method ◽  
Modified Method ◽  
Fungicide Residues ◽  
Crop Types ◽  
Large Representative

Abstract A modified method for the determination of dithiocarbamate fungicide residues on crops is presented. A large representative subsample of the frozen crop is blended in ice-cold deaerated water and an aliquot of the homogenate is added to the analytical apparatus containing hot 5 0% sulfuric acid. Dithiocarbamates are decomposed to evolve CS2 which is removed by a continuous gentle air-sweep from the digestion flask. Variations in technique allow the analysis of dithiocarbamate fungicide residues in several ranges, 1-10, 10-200, and 200-1000 /ig maneb. Recoveries from a wide variety of crops averaged 70 to 103%. Certain crop types present low recoveries and/or high apparent control values, but modifications in the analytical procedure are successful in solving these problems.

Control of Blumeriella jaapii and determination of fungicide residues in sour cherry fruits

2021 ◽  
pp. 345-348
Author(s):  
V. Božić ◽  
S. Vuković ◽  
S. Lazić ◽  
D. Šunjka ◽  
A. Žunić
Keyword(s):  
Sour Cherry ◽  
Blumeriella Jaapii ◽  
Fungicide Residues

Food fingerprinting: Mass spectrometric determination of the cocoa shell content (Theobroma cacao L.) in cocoa products by HPLC-QTOF-MS

2019 ◽  
Vol 298 ◽  
pp. 125013 ◽  
Author(s):  
Nicolas Cain ◽  
Oliver Alka ◽  
Torben Segelke ◽  
Kristian von Wuthenau ◽  
Oliver Kohlbacher ◽  
...  
Keyword(s):  
Theobroma Cacao ◽  
Mass Spectrometric ◽  
Mass Spectrometric Determination ◽  
Cocoa Products ◽  
Cocoa Shell ◽  
Shell Content ◽  
Theobroma Cacao L

Fungicide Residues, Spectrophotometric Determination of Pentachloronitrobenzene on Food and Forage Crops

1958 ◽  
Vol 6 (10) ◽  
pp. 747-750 ◽  
Author(s):  
H. J. Ackermann ◽  
H. A. Baltrush ◽  
H. H. Berges ◽  
D. O. Brookover ◽  
B. B. Brown
Keyword(s):  
Spectrophotometric Determination ◽  
Forage Crops ◽  
Fungicide Residues

scholarly journals Food Targeting: Determination of the Cocoa Shell Content (Theobroma cacao L.) in Cocoa Products by LC-QqQ-MS/MS

Metabolites ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 91
Author(s):  
Nicolas Cain ◽  
Christian Marji ◽  
Kristian von Wuthenau ◽  
Torben Segelke ◽  
Markus Fischer
Keyword(s):  
Prediction Model ◽  
Theobroma Cacao ◽  
Targeted Metabolomics ◽  
Metabolomic Profiling ◽  
Cocoa Products ◽  
Cocoa Shell ◽  
Shell Content ◽  
Different Origins ◽  
Theobroma Cacao L

A targeted metabolomics LC-ESI-QqQ-MS/MS application for the determination of cocoa shell based on 15 non-polar key metabolites was developed, validated according to recognized guidelines, and used to predict the cocoa shell content in various cocoa products. For the cocoa shell prediction, different PLSR models based on different cocoa shell calibration series were developed and their suitability and prediction quality were compared. By analysing samples from different origins and harvest years with known shell content, the prediction model could be confirmed. The predicted shell content could be verified with a deviation of about 1% cocoa shell. The presented method demonstrates the suitability of the targeted application of metabolomic profiling for the determination of cocoa shell and its applicability in routine analysis is discussed.

scholarly journals Determination of Tetraconazole and Diniconazole Fungicide Residues in Tomatoes and Green Beans by Capillary Gas Chromatography

2007 ◽  
Vol 127 (6) ◽  
pp. 993-999 ◽  
Author(s):  
Mohamed M. AMER ◽  
Mostafa A. SHEHATA ◽  
Hayam M. LOTFY ◽  
Hany H. MONIR
Keyword(s):  
Gas Chromatography ◽  
Capillary Gas Chromatography ◽  
Green Beans ◽  
Fungicide Residues
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