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Engineering in Agriculture, Environment and Food最新文献

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Metabolic and electrical responses to potassium deficiency stress in strawberries 草莓对缺钾胁迫的代谢和电反应
Engineering in Agriculture, Environment and Food Pub Date : 2023-01-01 DOI: 10.37221/eaef.16.2_53
Kiko KURODA, Teppei IMAIZUMI, Masaharu YASUDA, Takeshi NIIKAWA, Kohei NAKANO, Nakako KATSUNO, Takahisa NISHIZU
{"title":"Metabolic and electrical responses to potassium deficiency stress in strawberries","authors":"Kiko KURODA, Teppei IMAIZUMI, Masaharu YASUDA, Takeshi NIIKAWA, Kohei NAKANO, Nakako KATSUNO, Takahisa NISHIZU","doi":"10.37221/eaef.16.2_53","DOIUrl":"https://doi.org/10.37221/eaef.16.2_53","url":null,"abstract":"The effects of potassium concentration on the metabolomic and electrical responses of strawberry fruits were investigated. The potassium concentration of fruit harvested in January, March, and April were determined. Quality differences were observed in April, with lower potassium levels resulting in lower Brix values and acidity. Intracellular resistance and cell membrane capacity, as determined by impedance analysis, were correlated with acidity and sugar content, respectively. In addition, metabolomic analysis by gas chromatography-tandem mass spectrometry (GC-MS / MS) indicated that stress markers, such as putrescine, were detected before quality differences appeared. While impedance analysis is useful for evaluating the tissue condition of strawberries, metabolomic analysis can be used to predict quality changes.","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135318185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inedible sites of Earl’s melon (<i>Cucumis melo</i> L.) have antihypertensive properties 厄尔瓜的不可食用部位(&lt;i&gt;甜瓜&lt;/i&gt;L.)具有抗高血压的特性
Engineering in Agriculture, Environment and Food Pub Date : 2023-01-01 DOI: 10.37221/eaef.16.2_62
Tomoyasu TOYOIZUMI, Atsushi IKEGAYA, Taichi YAMAMOTO, Masaomi HARA, Toru KOSUGI, Seiji OHBA
{"title":"Inedible sites of Earl’s melon (&lt;i&gt;Cucumis melo&lt;/i&gt; L.) have antihypertensive properties","authors":"Tomoyasu TOYOIZUMI, Atsushi IKEGAYA, Taichi YAMAMOTO, Masaomi HARA, Toru KOSUGI, Seiji OHBA","doi":"10.37221/eaef.16.2_62","DOIUrl":"https://doi.org/10.37221/eaef.16.2_62","url":null,"abstract":"This study aimed to clarify the characteristics of gamma-aminobutyric acid (GABA), citrulline (Cit), nicotianamine (Nit), angiotensin I-converting enzyme (ACE) inhibition, antioxidant capacity, and antioxidant contents in the inedible sites of Earl’s melon that are discarded during food processing: placental tissue, fruit skin, and seeds. These sites are antihypertensive, contain GABA, Cit, Nit, and antioxidants, and have ACE inhibitory activity, and antioxidant capacity; however, these sites have different characteristics. In particular, placental tissue had the highest GABA, Cit, antioxidant levels, and antioxidant capacity. These properties suggest that it is a useful raw material for new health foods; this provides a solution to utilize unused resources. These compounds are potential anti-hypertensive materials.","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135318606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A vision-based road detection system for the navigation of an agricultural autonomous tractor 一种用于农业自动拖拉机导航的基于视觉的道路检测系统
Engineering in Agriculture, Environment and Food Pub Date : 2023-01-01 DOI: 10.37221/eaef.16.2_43
Sristi SAHA, Tsuyoshi MORITA, Noboru NOGUCHI
{"title":"A vision-based road detection system for the navigation of an agricultural autonomous tractor","authors":"Sristi SAHA, Tsuyoshi MORITA, Noboru NOGUCHI","doi":"10.37221/eaef.16.2_43","DOIUrl":"https://doi.org/10.37221/eaef.16.2_43","url":null,"abstract":"Autonomous tractors can operate in open fields by using the RTK-GNSS (Real-time Kinematic-Global Navigation Satellite System). However, RTK-GNSS signal might not be available at all geographical locations, which could make autonomous driving unsafe. To avoid such situations, we sought to develop a vision-based agricultural road detection system that does not rely on RTK-GNSS. It takes the RGB images obtained from an HD onboard camera, removes camera distortion, filters the images, detects the road edges, and calculates the lateral error. Experimental runs showed that the lateral error was less than 0.2 m for unpaved roads and 0.4 m for paved roads. This shows that the system can detect agricultural roads and thus can be used in place of RTK-GNSS.","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135318154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Production and characterization of levan by <i>Bacillus siamensis</i> at flask and bioreactor 连体芽孢杆菌(Bacillus siamensis)生产利末酵母及特性研究在烧瓶和生物反应器
Engineering in Agriculture, Environment and Food Pub Date : 2023-01-01 DOI: 10.37221/eaef.16.1_15
Pongtorn PHENGNOI, Suttinee SATTAVANICH, Chavanond CHAROENSUP, Supansa NUENGNOON, Krittiya JANTHORN, Nuttinee TEERAKULKITTIPONG, Witawat JANGIAM
{"title":"Production and characterization of levan by &lt;i&gt;Bacillus siamensis&lt;/i&gt; at flask and bioreactor","authors":"Pongtorn PHENGNOI, Suttinee SATTAVANICH, Chavanond CHAROENSUP, Supansa NUENGNOON, Krittiya JANTHORN, Nuttinee TEERAKULKITTIPONG, Witawat JANGIAM","doi":"10.37221/eaef.16.1_15","DOIUrl":"https://doi.org/10.37221/eaef.16.1_15","url":null,"abstract":"Edible film is a novel concept in the packaged food industry. It is used to extend the shelf life of food. This study aimed to compare levan production from Bacillus siamensis using a flask and bioreactor, characterize its properties, and evaluate the properties of levan alginate-based film coating by applying it on guava. The water vapor permeability (WVP) of the films and weight loss of the coated guava were measured. The results revealed that the performance of the bioreactor was similar to flask cultivation. Levan exhibited prebiotic activity and promoted the growth of Lacticaseibacillus casei. The WVP of the film comprising purified levan was 6.02 × 10-8 g m-1 s-1 Pa-1. Coated guava demonstrated reduced weight loss by up to 49.35 %.","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135057025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The minimal exoskeleton, a passive exoskeleton to simplify pruning and fruit collection 最小的外骨骼，一个被动的外骨骼，简化修剪和水果收集
Engineering in Agriculture, Environment and Food Pub Date : 2023-01-01 DOI: 10.37221/eaef.16.1_37
Gabriele REVERBERI, Francesco CEPOLINA, Giorgio PIETRONAVE, Marco TESTA, Vishal RAMADOSS, Matteo ZOPPI
{"title":"The minimal exoskeleton, a passive exoskeleton to simplify pruning and fruit collection","authors":"Gabriele REVERBERI, Francesco CEPOLINA, Giorgio PIETRONAVE, Marco TESTA, Vishal RAMADOSS, Matteo ZOPPI","doi":"10.37221/eaef.16.1_37","DOIUrl":"https://doi.org/10.37221/eaef.16.1_37","url":null,"abstract":"Terracing allows cultivation even in hilly regions but does not permit the use of conventional heavy machinery. Olive trees, grown on terraced lands, are harvested with a handheld long-shafted harvester that shakes the branches of the trees and makes olives fall over nets arranged around the trees. This relatively heavy and unbalanced hand-hold tool causes fatigue and articular-muscular disease to the operators. This paper presents a lightweight exoskeleton developed to help in the carrying and operating of such tools, reducing human effort and the incidence of long-term pathologies to the operators. This work describes the kinematics and design of the proposed exoskeleton, which is passive and “minimal”. A prototype of the exoskeleton has been produced and tested in the field.","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135057595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Life cycle assessment of apple exported from Japan to Taiwan and potential environmental impact abatement 日本输台苹果的生命周期评估及潜在的环境影响消减
Engineering in Agriculture, Environment and Food Pub Date : 2023-01-01 DOI: 10.37221/eaef.16.1_1
Takahiro ORIKASA, Yanne GOOSSENS, Annemie GEERAERD
{"title":"Life cycle assessment of apple exported from Japan to Taiwan and potential environmental impact abatement","authors":"Takahiro ORIKASA, Yanne GOOSSENS, Annemie GEERAERD","doi":"10.37221/eaef.16.1_1","DOIUrl":"https://doi.org/10.37221/eaef.16.1_1","url":null,"abstract":"A life cycle assessment (LCA) was performed for fresh apples exported from Japan to Taiwan to identify hotspots along the supply chain. We further explore how to minimize the environmental impact of the post-harvest chain to mitigate the carbon footprint of the apple chain. Within the climate change impact category, the hotspots were cultivation and truck transport with cooling in Japan. Based on the hotspots, introducing a modal shift in Japanese domestic transportation and changing to a port closer to the farm for ship distribution would decrease the climate change impact by 13-22 % relative to the base case. This study provided essential insights for the development of a more environmentally friendly apple distribution process from Japan to Taiwan.","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135056691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance evaluation and factors affecting cassava root cutting machine using cylinder saw and grasper 采用滚筒锯和抓手的木薯切根机性能评价及影响因素
Engineering in Agriculture, Environment and Food Pub Date : 2023-01-01 DOI: 10.37221/eaef.16.2_71
Thanaporn SINGHPOO, Seree WONGPICHET, Jetsada POSOM, Kanda Runapongsa SAIKAEW, Khwantri SAENGPRACHATANARUG
{"title":"Performance evaluation and factors affecting cassava root cutting machine using cylinder saw and grasper","authors":"Thanaporn SINGHPOO, Seree WONGPICHET, Jetsada POSOM, Kanda Runapongsa SAIKAEW, Khwantri SAENGPRACHATANARUG","doi":"10.37221/eaef.16.2_71","DOIUrl":"https://doi.org/10.37221/eaef.16.2_71","url":null,"abstract":"This research proposes a new cassava root-cutting machine designed as a cylinder saw and grasper mechanism. The machine’s performance was assessed to prove its utility, and two factors affecting the performance were investigated: the cassava branching type (erect, dichotomous, and tetrachotomous) and the surrounding gap between the cylinder saw and cassava stalk (10, 15, 20, and 25 mm). The result showed that the average loss, trash, cutting time, compressive force, torque, and power consumption were 3.49 % and 2.34 %, 62 s / stalk, 141.69 N, 15.04 Nm, and 587.75 W, respectively. To prevent high loss and trash, a 20 mm gap is optimal for all branching types.","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135318155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phenotyping system for precise monitoring of potato crops during growth 马铃薯作物生长过程中表型精确监测系统
Engineering in Agriculture, Environment and Food Pub Date : 2023-01-01 DOI: 10.37221/eaef.16.1_24
Stephen Njehia NJANE, Shogo TSUDA, Ryo SUGIURA, Kenji KATAYAMA, Kazuhisa GOTO, Shinori TSUCHIYA, Hiroyuki TSUJI
{"title":"Phenotyping system for precise monitoring of potato crops during growth","authors":"Stephen Njehia NJANE, Shogo TSUDA, Ryo SUGIURA, Kenji KATAYAMA, Kazuhisa GOTO, Shinori TSUCHIYA, Hiroyuki TSUJI","doi":"10.37221/eaef.16.1_24","DOIUrl":"https://doi.org/10.37221/eaef.16.1_24","url":null,"abstract":"A phenotyping system was developed for monitoring the growth of 3 Japanese and 5 European varieties of potatoes. From the UAV images taken weekly, plant height, volume and vegetation indices were estimated from the DSM and the reflectance maps. UAV-estimated volume and manually measured plant height had a high correlation with a coefficient of determination R2 of 0.70. UAV estimated NDVI was highly correlated with the manually measured NDVI (correlation coefficient of R = 0.97). European varieties such as Euroviva had a higher volume compared to the Japanese varieties such as Irish cobbler and Toyoshiro. Volume and LCI were found to be highly correlated with the yield ( R2 of 0.99 and 0.96) thus ideal parameters for yield prediction.","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135056702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Navigation of a robot tractor using the centimeter level augmentation information via Quasi-Zenith Satellite System 基于准天顶卫星系统厘米级增强信息的机器人拖拉机导航
Engineering in Agriculture, Environment and Food Pub Date : 2019-10-01 Epub Date: 2019-06-12 DOI: 10.1016/j.eaef.2019.06.003
Hao Wang , Noboru Noguchi
{"title":"Navigation of a robot tractor using the centimeter level augmentation information via Quasi-Zenith Satellite System","authors":"Hao Wang ,&nbsp;Noboru Noguchi","doi":"10.1016/j.eaef.2019.06.003","DOIUrl":"10.1016/j.eaef.2019.06.003","url":null,"abstract":"<div><p>The study evaluates the Centimeter Level Augmentation Service (CLAS) of the Quasi-Zenith Satellite System (QZSS) for controlling a robot tractor. The QZSS transmits augmentation information through an L6 signal to enhance the positioning accuracy of the Global Navigation Satellite System (GNSS). Besides accessing the augmentation information through the L6 signal using a commercial QZSS receiver, this paper also introduces a method for using CLAS with a dual frequency receiver that cannot receive the L6 signal. Stationary and dynamic positioning experiments prove that the QZSS is able to improve the accuracy and availability of the current GNSS. Compensating for the biases of the CLAS positioning results relative to the current GNSS, a robot tractor works along with GNSS-based navigation within 5 cm accuracy.</p></div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"12 4","pages":"Pages 414-419"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2019.06.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133550052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Factors affecting fuel consumption of tractor operating active tillage implement and its prediction 拖拉机操纵主动耕具油耗影响因素及预测
Engineering in Agriculture, Environment and Food Pub Date : 2019-10-01 Epub Date: 2019-11-11 DOI: 10.1016/j.eaef.2019.11.007
V. Shobhan Naik, H. Raheman
{"title":"Factors affecting fuel consumption of tractor operating active tillage implement and its prediction","authors":"V. Shobhan Naik,&nbsp;H. Raheman","doi":"10.1016/j.eaef.2019.11.007","DOIUrl":"10.1016/j.eaef.2019.11.007","url":null,"abstract":"<div><p><span>Fuel consumption and power take-off (PTO) power requirement were measured for a 33.8 kW two-wheel drive tractor when used for operating a 1.6 m rotavator with 36 “L” shaped blades in sandy clay loam soil at an average soil </span>moisture content of 8.8 ± 1% (dry basis) at IIT Kharagpur, India. Field experiments were conducted for a tractor with rotavator at seven different engine speeds (between 35 and 75% of full throttle engine speed), gear settings (L2 and L3) and depths of operation (60, 80 and 100 mm). Depth of operation, engine speed and gear setting were found to affect the fuel consumption of tractor. For the same PTO power consumption, lesser fuel consumption of tractor was observed in gear up conditions. A variation from −3.60 to −19.67% was observed while comparing the observed fuel consumption values with those predicted by the American Society of Agricultural and Biological Engineers (ASABE D 497.7) model. These variations were due to non-inclusion of gear settings in the ASABE fuel consumption model. Hence, an attempt was made to modify the ASABE fuel consumption model by incorporating gear settings in terms of speed ratio (peripheral speed of the rotavator to forward speed of the tractor i.e. u/v ratio). The developed fuel consumption model comprising engine speed, PTO power consumption and u/v could predict the observed values with a variation of ±6%.</p></div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"12 4","pages":"Pages 548-555"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124335628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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