scholarly journals Effects of improved post-harvest handling on the chemical constituents and quality of carrageenan in red alga, Kappaphycus alvarezii Doty

2013 ◽  
Vol 26 (2) ◽  
pp. 909-916 ◽  
Author(s):  
Charles Santhanaraju Vairappan ◽  
Rossnita Razalie ◽  
Ummul Mardiah Elias ◽  
Tulasiramanan Ramachandram
Keyword(s):  
Chemical Constituents ◽  
Kappaphycus Alvarezii ◽  
Red Alga ◽  
Post Harvest

scholarly journals Results of Laboratory Studies of the Automated Sorting System for Root and Onion Crops

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1257
Author(s):  
Alexey Dorokhov ◽  
Alexander Aksenov ◽  
Alexey Sibirev ◽  
Nikolay Sazonov ◽  
Maxim Mosyakov ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Technological Parameters ◽  
Post Harvest ◽  
Manual Sorting ◽  
Sorting System ◽  
Working Bodies ◽  
Automatic Removal

The roller and sieve machines most commonly used in Russia for the post-harvest processing of root and tuber crops and onions have a number of disadvantages, the main one being a decrease in the quality of sorting due to the contamination of working bodies, which increases the quantity of losses during sorting and storage. To obtain high-quality competitive production, it is necessary to combine a number of technological operations during the sorting process, such as dividing the material into classes and fractions by quality and size, as well as identifying and removing damaged products. In order to improve the quality of sorting of root tubers and onions by size, it is necessary to ensure the development of an automatic control system for operating and technological parameters, the use of which will eliminate manual sorting on bulkhead tables in post-harvest processing. To fulfill these conditions, the developed automatic control system must have the ability to identify the material on the sorting surface, taking into account external damage and ensuring the automatic removal of impurities. In this study, the highest sorting accuracy of tubers (of more than 91%) was achieved with a forward speed of 1.2 m/s for the conveyor of the sorting table, with damage to 2.2% of the tubers, which meets the agrotechnical requirements for post-harvest processing. This feature distinguishes the developed device from similar ones.

scholarly journals Transcriptome analysis to elucidate hexanal's mode of action in preserving the post-harvest shelf life and quality of banana fruits (Musa acuminata)

2021 ◽  
Vol 3 ◽  
pp. 100114
Author(s):  
Peninah Yumbya ◽  
Jane Ambuko ◽  
Margaret Hutchinson ◽  
Willis Owino ◽  
John Juma ◽  
...  
Keyword(s):  
Shelf Life ◽  
Transcriptome Analysis ◽  
Mode Of Action ◽  
Musa Acuminata ◽  
Post Harvest

scholarly journals Effect of Oxidative Stress on Physicochemical Quality of Taiwanese Seagrape (Caulerpa lentillifera) with the Application of Alternating Current Electric Field (ACEF) during Post-Harvest Storage

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1011
Author(s):  
Andi Syahrullah Sulaimana ◽  
Chao-Kai Chang ◽  
Chih-Yao Hou ◽  
Bara Yudhistira ◽  
Fuangfah Punthi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Electric Field ◽  
Alternating Current ◽  
Chlorophyll Degradation ◽  
Physicochemical Quality ◽  
Post Harvest ◽  
Caulerpa Lentillifera ◽  
Different Seasons ◽  
Current Electric Field

This study aims to determine the physicochemical quality of seagrape (Caulerpa lentillifera) as a freshness label for products cultivated in different seasons. The applied post-harvest storage experiments compared between, within and without seawater that led to oxidative stress conditions. Water content, malondialdehyde (MDA) compound, total phenolic content (TPC), and chlorophyll content were observed at 0, 3, 6, and 9 days of storage. The storage without seawater showed sharper quality reductions by reaching 20–40% of water loss, 70–90% of MDA production, 15–25% of TPC reduction, and 40–60% of total chlorophyll degradation. The storage within seawater showed lower quality reductions due to the specific growth rates still reaching 5–10%. This study found that the greater the physicochemical quality, the slower the decomposition rates of the stored seagrape during storage. Therefore, the seagrapes’ obvious discoloration occurred earlier in winter, followed by summer and spring. Kinetics of chlorophyll degradation on seagrape in different seasons meet different order-reactions during storage. Furthermore, alternating current electric field (ACEF) treatment with 125 kV/m of intensity for 60 min can lower the spring seagrapes’ physicochemical quality by reaching 10–30% of inhibition, resulting in the shelf-life extension for up to 12 days of post-harvest storage.

scholarly journals Improvement of post-harvest quality of pear fruit with optimized composite edible coating formulations

2017 ◽  
Vol 54 (12) ◽  
pp. 3917-3927 ◽  
Author(s):  
Rudri K. Dave ◽  
T. V. Ramana Rao ◽  
A. S. Nandane
Keyword(s):  
Edible Coating ◽  
Pear Fruit ◽  
Post Harvest ◽  
Coating Formulations

scholarly journals QUALITY OF REACTION WOOD IN Eucalyptus TREES TILTED BY WIND FOR PULP PRODUCTION

CERNE ◽  
2017 ◽  
Vol 23 (3) ◽  
pp. 291-297
Author(s):  
Walter Torezani Neto Boschetti ◽  
Juarez Benigno Paes ◽  
Graziela Baptista Vidaurre ◽  
Marina Donária Chaves Arantes ◽  
João Gabriel Missia da Silva
Keyword(s):  
Chemical Composition ◽  
Chemical Constituents ◽  
Wood Quality ◽  
Basic Density ◽  
Kraft Pulping ◽  
Normal Wood ◽  
Reaction Wood ◽  
Opposite Wood ◽  
Holocellulose Content

ABSTRACT This study aims to evaluate the quality of normal, tension and opposite wood of eucalyptus trees lengthwise, in straight and inclined stems, affected by wind action. It also aims to explain the pulping parameters resultant from the quality of the wood. The trees were grouped into four tilt ranges, ranging from 0 to 50º, and the basic density, chemical composition of the wood, and performance in kraft pulping were assessed. Normal and tension wood had similar basic densities; while for opposite wood, the density was lower, being responsible for a decrease in reaction wood density. The chemical composition of the wood was influenced by the presence of reaction wood in the stem. Tension and opposite wood showed lower levels of extractives and lignin and higher holocellulose content when compared to normal wood, with favorable wood quality for pulping. The increase in holocellulose content and the reduction of lignin and extractives content contributed positively to a more delignified pulp and reduction of the Kappa number. However, after cooking the reaction wood under the same conditions as those of normal wood, reaction wood pulping tends to have a lower screen yields. Due to differences in basic density and chemical constituents between opposite and normal wood, it is recommended not to designate the opposite wood as normal wood.

scholarly journals Assessment of risks in the field of safety, quality and environment in post-harvest line

2016 ◽  
Vol 61 (Special Issue) ◽  
pp. S26-S36 ◽  
Author(s):  
M. Žitňák ◽  
K. Kollárová ◽  
M. Macák ◽  
M. Prístavková ◽  
M. Bošanský
Keyword(s):  
Failure Mode ◽  
Fire Safety ◽  
Occupational Safety ◽  
Fire Risk ◽  
Acceptable Level ◽  
Post Harvest ◽  
Before And After

The objective of this work is the evaluation of threats in the field of safety, fire safety, quality and environment in the post-harvest treatment of grain, with an emphasis put on pre-cleaning and drying of grain. The paper describes the technology of pre-cleaning and drying of grain. Risks for individual machines were evaluated using a failure mode and effects analysis (FMEA), which is used to evaluate the threats in terms of fire risk, occupational safety, the effect of machine on the quality of final product, and effect on the environment. We have proposed measures and solutions to eliminate or minimise the consequences of threats. Risk rates are evaluated before and after measures adopted. It can be stated based on the results that risk was successfully reduced to an acceptable level after adopting measures.

scholarly journals analisis faktor - faktor yang mempengaruhi harga jual kedelai di tingkat petani pada sentral produksi di Kecamatan Peudada Kabupaten Bireuen

2017 ◽  
Vol 2 (2) ◽  
pp. 138-146
Author(s):  
Amirul Fuadi ◽  
Elly Susanti ◽  
Suyanti Kasimin
Keyword(s):  
Distribution Channels ◽  
Production Level ◽  
Selling Price ◽  
Research Model ◽  
Factors Affecting ◽  
Post Harvest ◽  
Research Areas ◽  
Central Production ◽  
The Village

Abstrak : Harga jual merupakan salah satu faktor yang sangat berpengaruh terhadap petani, salah satunya yaitu tingkat pendapatan yang di peroleh oleh para petani, yang selanjutnya akan berpengaruh terhadap motivasi dan produktivitas kerja dari para petani. Saluran pemasaran yang terlalu panjang, dan kebijakan harga yang tidak memihak pada petani mengakibatkan keuntungan yang di peroleh oleh petani sangat sedikit. Tujuan dari penelitian ini adalah untuk mengetahui faktor- faktor yang mempengaruhi harga jual kedelai tingkat petani di Kecamatan Peudada Kabupaten Bireuen. Berdasarkan hal tersebut, penelitian ini dilakukan untuk mengetahui faktor-faktor apa saja yang berpengaruh terhadap harga jual kedelai tingkat petani. Penelitian ini dilakukan di Kecamatan Peudada Kabupaten Bireuen, Lokasi penelitian dipilih secara sengaja (purposive). Ruang lingkup penelitian ini terbatas pada faktor tingkat produksi, kualitas, penanganan pascapanen dan saluran distribusi pemasaran. Populasi dalam penelitian ini sebanyak 30 orang yang diambil dari tiga desa tersebut yaitu desa Cot Kruet, Pinto Rimba, Ara Bungong. Sedangkan besarnya sampel yang digunakan dalam penelitian ini adalah 15% dari total populasi penelitian. Model analisis yang digunakan adalah fungsi linier berganda. Hasil analisis koefisiensi determinasi ( R² ) diperoleh nilai sebesar 0,827 yang berarti bahwa tingkat produksi, kualitas, penanganan pascapanen, dan saluran ditribusi pemasaran mempengaruhi harga jual kedelai sebesar 82,7%, sedangkan sisanya 17,3% dipengaruhi oleh faktor lain. Hasil analisis secara serempak (uji-f) bahwa tingkat produksi, Kualitas, Penanganan pascapanen, dan saluran distribusi pemasaran berpengaruh nyata terhapap harga jual kedelai tingkat petani di Kecamatan Peudada Kabupaten Bireuen. Analisis secara parsial (uji-t) menyatakan bahwa faktor kualitas dan penanganan pascapanen yang berpengaruh nyata terhadap harga jual kedelai tingkat petani.Analysis Factors Affecting The Selling Price Soybean Level Farmer in Central Production in Kecamatan Peudada Kabupaten Bireuen.Abstract : The selling price is one factor that would influence the farmers, one of them is income levels in get the farmers, which later will have an influence to motivation and labor productivity from farmers. Marketing outlets is too long, and policy the price of being impartial the farmers resulting in an advantage in get by farmers very few. The purpose of this study is to find of factors affect the selling price of soybean the farm gate in Kecamatan Peudada Kabupaten bireuen. Based on it, the study is done to find out what factors had an influence on the selling price of soybean farm gate. The study is done in Kecamatan Peudada Kabupaten Bireuen, the research areas was selected deliberately (purposive). Scope this research limited to factors production level, the quality of, post-harvest handling of crops and distribution channels marketing. Population in this study as many as 30 people who is taken from the three the village the village Cot Kruet, Pinto Rimba, Ara Bungong. The amount of sample used in this research was 15 % of the total number of research. Model the analysis used is a function linear multiple.The results of the analysis koefisiensi determination ( R2 ) obtained value of 0,827 which means that production level, the quality, post-harvest handling of crops, and channels ditribusi marketing affect the selling price soybean of 82.7 %, while the rest 17.3 % influenced by other factors. The results of the analysis in unison ( uji-f ) that production level, the quality, post-harvest handling of crops, marketing and distribution channels may had have real impact against the selling price soybean the farm gate in Kecamatan Peudada Kabupaten Bireuen. Analysis in partial ( uji-t ) said that factors the quality and post-harvest handling of crops who had have real impact on the selling price soybean the farm gate.

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