{"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}
{"title":"Inedible sites of Earl’s melon (<i>Cucumis melo</i> 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}
{"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}
{"title":"Production and characterization of levan by <i>Bacillus siamensis</i> 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}
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}
{"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}
{"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}
{"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}
Md.Anisur Rahman , Chayan Kumer Saha , Lu Feng , Henrik B. Møller , Md.Monjurul Alam
{"title":"Anaerobic digestion of agro-industrial wastes of Bangladesh: Influence of total solids content","authors":"Md.Anisur Rahman , Chayan Kumer Saha , Lu Feng , Henrik B. Møller , Md.Monjurul Alam","doi":"10.1016/j.eaef.2019.10.002","DOIUrl":"10.1016/j.eaef.2019.10.002","url":null,"abstract":"<div><p><span>Producing bioenergy<span><span> from the anaerobic digestion (AD) of </span>poultry droppings<span><span> (PD), press mud (PM), sugarcane bagasse (SB) and </span>sugar beet roots and tops (SRT) could be an effective source of fuel and energy for processing sugar from sugar beet and sugarcane and for reviving and making the sugar industries profitable in Bangladesh. The total solids (TS) content is crucial for an optimum performance of the AD process. In this study, batch assays were conducted to determine the optimal TS contents on the mesophilic AD of PD, PM, SB and SRT with TS contents of 5, 8, 11 and 15%, respectively. The highest biochemical methane potential (BMP) were found 254, 121, 205 and 23 NL kg</span></span></span><sup>−1</sup>VS for PD, PM, SB and SRT after digestion for 90 days at TS content of 11%, 15%, 11% and 8%, respectively. The results indicate that the initial TS influenced the AD performance significantly and modeling showed that the optimal initial TS content for AD of PD, PM and SB ranged between 12 and 13%.The only exception was SRT, where an initial TS content of 8% is recommended.</p></div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"12 4","pages":"Pages 484-493"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2019.10.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124466899","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}
Ansharullah Ansharullah , Dinda Aisyah Musfiroh , M. Natsir , Maulidiyah Maulidiyah , Muhammad Nurdin
{"title":"Improving the Fe and vitamin C content of the sago based liquid sugar with Moringa and Katuk leaf extracts","authors":"Ansharullah Ansharullah , Dinda Aisyah Musfiroh , M. Natsir , Maulidiyah Maulidiyah , Muhammad Nurdin","doi":"10.1016/j.eaef.2019.10.003","DOIUrl":"10.1016/j.eaef.2019.10.003","url":null,"abstract":"<div><p><span>Diversification of processed products based on sago<span> flour has been made, including glucose syrup production, which may be used as a substitute for sucrose sugar in various processed foods. This sago starch-based glucose syrup may be improved its added value by fortifying antioxidant and iron ingredients derived from the extract of </span></span><span><em>Moringa</em></span> and <em>Katuk</em> leaves. We study the fortification effect of <em>Moringa</em> and <em>Katuk</em> leaf extract on the properties of glucose content, iron, and vitamin C (L-ascorbic acid) of the sago liquid sugar. This study used a Completely Randomized Design with six treatments, which were the combination of the extract of <em>Moringa, Katuk</em>, and liquid sugar. Based on this study, we obtain the fortification of <em>Moringa</em> and <em>Katuk</em><span> leaf extract had a significant effect on the iron and vitamin C content but had no significant effect on glucose content. The control of G0 had glucose content of 83.70%, and increasing the content of leaves extracts had decreased the glucose content. Iron (Fe) and vitamin C contents had improved, as the leaves extracts were increased. Treatment of G4 had given the highest content of Fe (3.35 mg/100 g), and treatment of G5 had resulted in the highest Vitamin C content (5.26 mg/100 g). This study indicated that sago flour may have a good prospect in producing a variety of nutritional food ingredients, and at the same time its added value may be made.</span></p></div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"12 4","pages":"Pages 494-498"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116156857","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}