Postharvest Biology and Technology最新文献

{"title":"Enhanced detection of early bruises in apples using near-infrared hyperspectral imaging with geometrical influence correction for universal size adaptation","authors":"Bin Li,&nbsp;Te Ma,&nbsp;Tetsuya Inagaki,&nbsp;Satoru Tsuchikawa","doi":"10.1016/j.postharvbio.2024.113282","DOIUrl":"10.1016/j.postharvbio.2024.113282","url":null,"abstract":"<div><div>Near-infrared (NIR) imaging is effective in monitoring the optical property changes of fruit arising from mechanical damage. However, differences in fruit geometry and size severely limit the application of bruise detection solutions. By integrating NIR hyperspectral imaging (NIR-HSI) with geometrical influence correction (GIC), this paper presents a universal bruise enhancement and detection method for early-stage bruises inspection across apple cultivars with large size variations. HSI and shape data were collected via 360° rotational scanning of Sun Fuji, Shinano Sweet, and Esopus Spitzenburg apples before and during the first 24 h post-bruising. GIC was applied as a pretreatment method. For comparison, we applied whiteboard reflectance calibration (WRC) and WRC combined with the standard normal variate (SNV) approach. Using principal component analysis (PCA), a set of effective wavelength-loading coefficients for bruise enhancement was extracted across pooled datasets of average sound and bruise spectra from different samples. The optimal coefficients, determined using logistic regression, were applied uniformly across all HSI datasets for bruise enhancement. Finally, the local Otsu method combined with connected-domain screening was applied for bruise identification. Based on spectral analysis, PCA successfully extracted bruise-related wavelength coefficients with consistent trends across cultivars, facilitating universal bruise enhancement. GIC reduced shape-related interference, improving the use of the light scattering-related PC for bruise identification. GIC coupled with the universal enhancement emerged as the most effective method, consistently achieving the highest classification accuracy, superior identification accuracies for both central and edge bruises, and the earliest peak accuracy.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"219 ","pages":"Article 113282"},"PeriodicalIF":6.4,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The changes in chlorophyll, solanine, and phytohormones during light-induced greening in postharvest potatoes","authors":"Jiaxin Wang ,&nbsp;Jiatong Li ,&nbsp;Wei Chen ,&nbsp;Zhenfeng Yang ,&nbsp;Xuewen Li ,&nbsp;Li Wang ,&nbsp;Shifeng Cao ,&nbsp;Liyu Shi","doi":"10.1016/j.postharvbio.2024.113291","DOIUrl":"10.1016/j.postharvbio.2024.113291","url":null,"abstract":"<div><div>The changes in chlorophyll, solanine, and plant hormones during greening in postharvest potatoes exposed to light were investigated. The results showed that as potatoes under light turned green, the contents of chlorophyll and solanine sharply increased due to the upregulation of genes involved in their biosynthesis. At the end of storage, the chlorophyll and solanine content in potatoes stored under light were approximately 25.44 times and 1.62 times higher, respectively, compared to those stored in the dark. Light exposure inhibited the accumulation of indole-3-acetic acid (IAA) and gibberellin in potatoes, which was associated with the downregulation of their anabolic genes and the positive regulation of their catabolic genes. In contrast, light treatment increased the levels of ethylene, melatonin, brassinosteroid, abscisic acid and 6-benzylaminopurine compared to dark-stored potatoes. Correlation analysis revealed that solanine content was negatively correlated with IAA (r = −0.93) during greening, while chlorophyll content was positively associated with ethylene production (r = 0.91) but negatively related to IAA (r = −0.89). Our results suggested potential roles of phytohormones in regulating chlorophyll and solanine during greening in light exposed potatoes, which deserves further investigation.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"219 ","pages":"Article 113291"},"PeriodicalIF":6.4,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"YOLOv8-MDN-Tiny: A lightweight model for multi-scale disease detection of postharvest golden passion fruit","authors":"Dengjie Chen ,&nbsp;Fan Lin ,&nbsp;Caihua Lu ,&nbsp;JunWei Zhuang ,&nbsp;Hongjie Su ,&nbsp;Dehui Zhang ,&nbsp;Jincheng He","doi":"10.1016/j.postharvbio.2024.113281","DOIUrl":"10.1016/j.postharvbio.2024.113281","url":null,"abstract":"<div><div>Passion fruit, a commercially significant fruit crop, is easily infected by anthracnose and scab, which declines it economic value. However, at the present time, passion fruit quality grading is mainly judged by manual assessment, with strong subjectivity, poor efficiency and low accuracy. Intelligent classification of postharvest passion fruit is essential, with skin disease being a critical factor in grading fruit quality. In view of the shortcomings in traditional deep learning model, such as weak multi-scale detection ability and low accuracy, we propose a YOLOv8-MDN-Tiny model to improve the ability of passion fruit small-scale disease detection. The backbone layer is replaced by the self-made MFSO structure to expand the feature pixels of small target information and enrich their feature expression. An improved DyRep module is proposed to realize the interactive fusion of disease features at different scales and depths. NWD loss function is introduced to accurately measure the overlap of two bounding boxes. Finally, Slimming pruning and CWD are used to compress the model. Compared with YOLOv8s, our improved lightweight model achieves more accurate localization of small passion fruit targets. Specifically, the mAP₅₀ is increased by 2.2–94.8 %, the precision and recall are improved by 1.5 % and 6.0 %. Meanwhile, the number of model parameters and memory usage are decreased by 90.1 % and 88.9 %. The results technically support the disease detection in postharvest passion fruit and real-time grading of their quality.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"219 ","pages":"Article 113281"},"PeriodicalIF":6.4,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced preservation of cut rose flowers through bacterial nanocellulose produced from legume wastewater and fortified with Auricularia auricula polysaccharide","authors":"Yiran Yan ,&nbsp;Yetong Feng ,&nbsp;Tao Chen ,&nbsp;Qiuling Shao ,&nbsp;Nan Wu ,&nbsp;Shuai Han ,&nbsp;Jie Liu ,&nbsp;Dingkang Wei ,&nbsp;Yang Shen ,&nbsp;Xinyu Zhang ,&nbsp;Yang Li ,&nbsp;Dehui Qu ,&nbsp;Ying Zhu ,&nbsp;Guochao Wu","doi":"10.1016/j.postharvbio.2024.113277","DOIUrl":"10.1016/j.postharvbio.2024.113277","url":null,"abstract":"<div><div>Cut flowers of <em>Rosa hybrida</em> 'Lychee' are susceptible to rapid decay, resulting in a brief shelf life, a inherent feature to their floral physiology. This study evaluated the effects of bacterial nanocellulose (BNC), which was produced from the legume processing wastewater and loaded with <em>Auricularia auricula</em> polysaccharide and 8-hydroxyquinoline, in extending the shelf life of these cut rose flowers. Water-retaining cotton and floral foam blocks were employed as control materials. The bacterial strain <em>Komagataeibacter rhaeticus</em> CP050139.1 yielded BNC from legume waste at a rate comparable to that from a glucose-based medium: 0.107±0.004 g L⁻¹ d⁻¹ versus 0.157±0.004 g L⁻¹ d⁻¹, respectively. Characterization via FE-SEM, FT-IR, TGA, and XRD confirmed that the BNC from both sources exhibited similar microscopic morphology, chemical composition, thermal stability, and crystallinity. The use of BNC, particularly when enriched with <em>Auricularia auricula</em> polysaccharide (AAP), extended the shelf life of cut roses by 50 % and significantly minimized fresh weight loss in comparison to the control materials. BNC's superior water-holding capacity — 42.7 times greater than that of water-retaining cotton — proved advantages for maintaining hydration and preventing wilting during transportation. This study underscored the potential of BNC hydrogel, sourced from legume processing wastewater, as an innovative, effective, and environmentally sustainable solution for preserving cut rose flowers, promoting the recycling of agricultural by products and enhancing the preservation of horticultural products.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"219 ","pages":"Article 113277"},"PeriodicalIF":6.4,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of physiochemical characteristics of Lanzhou bulb of lily during storage periods","authors":"Jinmei Wei,&nbsp;Yongmei Zhang,&nbsp;Wenli Li","doi":"10.1016/j.postharvbio.2024.113271","DOIUrl":"10.1016/j.postharvbio.2024.113271","url":null,"abstract":"<div><div>The Lanzhou bulb of lily has gained global attention due to its high culinary and medicinal value. However, the quality characteristics of lily bulbs during storage remain unclear. Hence, to clarify the dynamic changes in the physiochemical characteristics of the bulbs during storage, this study analyzed bulbs at 0-, 15-, 30-, 45-, and 60-day vacuum and cold storage, respectively. The results revealed that the water content and pH decreased, while soluble sugar and dietary fiber contents fluctuated. Soluble protein was less affected by the storage time, yet starch was observed to degrade after 45 d of storage. A total of 66 volatile compounds were identified, among them, seven volatiles were dominant across all five storage periods. Fresh Lanzhou lily bulbs (0-day) contained higher water and sucrose contents. During the 45-day storage period, the quality of the lily bulbs was greatly influenced by the contents of starch, total dietary fiber (TDF), soluble dietary fiber (SDF), and esters, and by the contents of fructose, aldehydes, ketones, alkenes, and alkanes after 60 d of storage. Under the combination of vacuum packing and low-temperature storage, the optimal storage of Lanzhou lily bulbs is 45 d. This work is expected to be helpful in evaluating the quality of Lanzhou lily bulbs during storage and promoting the development of the lily industry.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"219 ","pages":"Article 113271"},"PeriodicalIF":6.4,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving the accuracy of NIR detection of moldy core in apples using different diameter correction methods","authors":"Hanlin Li,&nbsp;Jiajun Zan,&nbsp;Linxin Zhang,&nbsp;Binyan Hou,&nbsp;Tong Sun,&nbsp;Dong Hu","doi":"10.1016/j.postharvbio.2024.113279","DOIUrl":"10.1016/j.postharvbio.2024.113279","url":null,"abstract":"<div><div>Moldy core in apples is a common disease, with early symptoms not visible on the fruit surface. When affected apples are mixed with healthy ones, overall fruit quality declines, leading to the decay of healthy apples. Therefore, there is an urgent need for a rapid, non-destructive detection method. However, variations in apple diameter significantly affect the intensity of NIR transmission spectra, impacting the accuracy of detecting moldy core in apples. To address this issue, various diameter correction methods including a novel method we proposed were employed in this study to improve the accuracy of near-infrared detection of moldy core in apples, and these methods were also compared. The results indicate that the moldy core classification model is significantly influenced by apple diameter, with the uncorrected model achieving only 83.64 % accuracy in the prediction set. After adopting the diameter information fusion correction method, the performance of model has been slightly improved, with the accuracy of prediction set increasing by 0.91 %. Further improvement is achieved when using spectral normalization based on correlation and spectral correction based on diameter transformation, which has raised the accuracy of prediction set to 86.36 %. And the spectral correction based on polynomial transformation method proposed in this study has significantly improved the model performance, with the calibration and prediction sets achieving sensitivity, specificity, and accuracy of 85.22 %, 95.24 %, 90.00 %, and 85.45 %, 92.7 %, 89.09 %, respectively. Compared to the uncorrected model, the accuracy of the model in prediction set has been improved by 5.45 %. The model also demonstrates a 4.54 % enhancement over the one corrected using the diameter information fusion method. Additionally, when evaluated against the models using spectral normalization based on correlation and spectral correction based on diameter transformation, the accuracy has increased by 2.73 %. Therefore, the method of spectral correction based on polynomial transformation that proposed in this study effectively reduces the impact of apple diameter on transmission spectra, improving the detection accuracy of moldy core in apples and supporting rapid, non-destructive, high-precision detection.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"219 ","pages":"Article 113279"},"PeriodicalIF":6.4,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revealing the mechanism underlying the use of preharvest nano-emulsion of citrus essential oil for reducing browning injury and maintaining postharvest quality of chili during cold storage","authors":"Athakorn Promwee ,&nbsp;Narumol Matan","doi":"10.1016/j.postharvbio.2024.113274","DOIUrl":"10.1016/j.postharvbio.2024.113274","url":null,"abstract":"<div><div>The transportation and storage of chili in cold storage are beneficial for handling from farm to household; however, browning injury and quality loss during cold storage are the main concerns. This study explored a new method for preharvest chili plants to reduce browning injury and maintain postharvest quality during cold storage (4 ± 2 °C) for at least 40 days. Citrus essential oil (lime oil and orange oil) nanoemulsion at a low concentration of 0.006 % v v⁻¹ was applied to chili plants for 10 days before the 1st harvest at 90 days and the 2nd harvest at 120 days. Both the first and second harvest chili fruits were kept under cold storage for 40 days. Color change, pigment, bioactive compounds, and quality of chili were measured. Results showed that citrus nanoemulsion could be absorbed from the roots of chili plants and pass through the flowers and fruits. The treated chilies were firmer, more water-resistant, and had a longer fruit length than the control. Treated chili also displayed delayed color change, ripening from green to red, increased brightness, and reduced browning injury on both the surface and seeds. Furthermore, higher total phenolic content, total flavonoid content, and antioxidant activity were confirmed in the treated chili, which helped to maintain the quality of the chili fruit from 20 days (control) to 40 days, with a slight disease incidence (17 %) and low weight loss (7 %) compared to the control (54 % disease incidence and 64 % weight loss). Orange oil nanoemulsion showed greater quality preservation than lime oil due to the higher limonene content found on the chili surface, around 5.7 % for chili treated with orange oil compared to 0.7 % for lime oil. This finding indicates a method to reduce browning injury and prolong the shelf life of chili during cold storage. It is easy to implement in chili farming, allowing for at least two harvests before the next pretreatment, benefiting both farmers and consumers.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"219 ","pages":"Article 113274"},"PeriodicalIF":6.4,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Methyl jasmonate delays the browning of litchi pericarp by activating the phenylpropanoid metabolism during cold storage","authors":"Meiying He ,&nbsp;Feilong Yin ,&nbsp;Mohd Sabri Pak Dek ,&nbsp;Lingyan Liao ,&nbsp;Yunfen Liu ,&nbsp;Yuanli Liang ,&nbsp;Wen Cai ,&nbsp;Liangliang Huang ,&nbsp;Liang Shuai","doi":"10.1016/j.postharvbio.2024.113278","DOIUrl":"10.1016/j.postharvbio.2024.113278","url":null,"abstract":"<div><div>The market value of litchi fruit decreases due to pericarp browning. Methyl jasmonate (MeJA) has the ability to inhibit the occurrence of browning in litchi pericarp after harvest. However, the molecular mechanism underlying this effect remains unknown. In the present study, we used 100 μM MeJA to treat the ‘Guiwei’ litchi fruit to investigate the molecular mechanism by which MeJA delays the occurrence of browning via the phenylpropanoid metabolism. The results demonstrated that MeJA treatment effectively decreased the accumulation of reactive oxygen species (ROS), relative leakage rate (Rlr), and malondialdehyde (MDA) content. Additionally, MeJA treatment enhanced the enzyme activities of phenylalanine ammonia-lyase (PAL), cinnamate-4-monooxygenase (C4H), and 4-coumarate: coenzyme A ligase (4CL) in the early stage of phenylpropanoid metabolism, and up-regulated the expression of their respective genes, resulting in an increased content of GC, EGC, EGCG, EC, ECG, CG, total phenolics and flavonoids that help eliminate excess ROS and maintain a high antioxidant capacity. Treatment of fruit with MeJA down-regulated the gene expression and enzyme activity of peroxidase (POD) and decelerated the decline in the content of anthocyanins. Interestingly, MeJA treatment induced both the activity and gene expression of polyphenol oxidase (PPO). Correlation analysis showed that pericarp browning is closely related to PAL, C4H, 4CL, and phenolic components. In conclusion, MeJA treatment activated the early stage of the phenylpropanoid metabolism pathway, enhanced antioxidant capacity, and maintained anthocyanins content in the pericarp, thus delaying the browning of litchi fruit during storage at 4 ℃. These findings will lay the foundation for the application of MeJA in fruit preservation.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"219 ","pages":"Article 113278"},"PeriodicalIF":6.4,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transcriptomics revealed terpinen-4-ol mediated sucrose metabolism and delayed cell wall degradation to maintain blueberry quality","authors":"Yuxuan Li ,&nbsp;Jiaqi Wang ,&nbsp;Ling Yang ,&nbsp;Bingxin Sun ,&nbsp;Yunhe Zhang ,&nbsp;Yufeng Xu ,&nbsp;Xuerui Yan","doi":"10.1016/j.postharvbio.2024.113273","DOIUrl":"10.1016/j.postharvbio.2024.113273","url":null,"abstract":"<div><div>Fumigation with terpinen-4-ol (4OL) could enhance blueberry quality during postharvest storage in advance study. This work investigated the response of blueberry fruits to 4OL treatment based on transcriptomics. <em>VcSPS2</em> was noticed not only by significant up-regulation but also due to its relation to sucrose metabolic pathways. Following this clue, the enzymes and genes related to sucrose metabolism pathway were tested on blueberry fruits after 4OL fumigation. The result showed that sucrose content 28 % improved, the sucrose synthesis genes expression up-regulated and enzymes activity increased, the sucrose degradation genes expression down-regulated and enzymes activity suppressed. Meanwhile, <em>VcGLU3</em> associated with cell wall degradation was observed significantly down-regulated in transcriptomics. Moreover, the enzymes and genes related to cell wall degradation were verified and blueberry firmness were checked. The result indicated that firmness maintained well and the cell wall degradation genes expression down-regulated and enzymes activity suppressed. It indicated that 4OL could be a novel preservative in quality enhancement and retardation blueberry postharvest softening.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"219 ","pages":"Article 113273"},"PeriodicalIF":6.4,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic anti-browning effects of short-term high oxygen pre-stimulation and supercooled storage on fresh-cut potatoes by regulating polyphenol biosynthesis and membrane lipid oxidation","authors":"Xuejin Li ,&nbsp;Shenghu Luo ,&nbsp;Jianduo Shen ,&nbsp;Chaozhe Li ,&nbsp;Wuernisha Kadeer ,&nbsp;Lan Chen ,&nbsp;Xihong Li ,&nbsp;Yuqian Jiang ,&nbsp;Yao Tang","doi":"10.1016/j.postharvbio.2024.113257","DOIUrl":"10.1016/j.postharvbio.2024.113257","url":null,"abstract":"<div><div>This study investigates the regulatory mechanisms through which short-term high oxygen pre-stimulation (SHOP), combined with supercooled (SC) storage, synergistically enhances the anti-browning and cold tolerance of fresh-cut potatoes. Analyzed via LC-MS-based metabolomics and physiological assessments, the browning of fresh-cut potatoes involves polyphenol biosynthesis and membrane lipids oxidation. SHOP treatment enhanced amino acid metabolism in potato tubers and increased the activities of PPO, PAL, and POD by 63.8 %, 160.73 %, and 13.57 % compared with UT treatment, thereby inducing systemic resistance to cutting injuries and cold stress on day 0. However, the potato slices in SHOP-SC group showed suppressed PPO activity and reduced accumulation of browning associated phenolic compounds (especially chlorogenic acid and catechins) on day 4 compared with UT-SC group. Furthermore, SHOP improved membrane fluidity and reduced lipid peroxidation during SC storage, preserving membrane integrity in fresh-cut potatoes. Moreover, SHOP mitigated the stress response of fresh-cut potatoes and maintained a stable and less active physiological state during SC storage. This study provides novel insight into the molecular mechanisms underlying the synergistic browning inhibition and cold tolerance improvement in fresh-cut potatoes achieved by SHOP and SC storage, offering a promising strategy for shelf-life extension.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"219 ","pages":"Article 113257"},"PeriodicalIF":6.4,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}