Postharvest Biology and Technology最新文献

{"title":"Postharvest application of ultraviolet-A and blue light irradiations boosted the accumulation of acetylated anthocyanins in the blueberry fruit and its potential regulatory mechanisms","authors":"Mengxi Liu ,&nbsp;Aoxue Zhang ,&nbsp;Hong Yu ,&nbsp;Qilong Zeng ,&nbsp;Xiaoying Liu","doi":"10.1016/j.postharvbio.2024.113371","DOIUrl":"10.1016/j.postharvbio.2024.113371","url":null,"abstract":"<div><div>Anthocyanins in blueberry fruit have strong antioxidant capacity which could provide health benefits. However, the instability of natural anthocyanins restricts their inherent benefits. Acylation could enhance the stability of anthocyanins, but how to increase the content of acylated anthocyanins in blueberry fruit and underlying regulatory mechanisms are far less known. In this study, two southern highbush blueberry cultivars, 'Gulfcoast' and 'O'neal', which exhibit notable variations in acetylated anthocyanins content, were employed to explore the method of boosting this content through spectral modulation and the underlying regulatory mechanisms. The findings indicated that postharvest exposure to ultraviolet (UV)-A or 440 nm blue light irradiations significantly increased the contents of acetylated anthocyanins in both blueberry cultivars. Through the analysis of acetylated anthocyanins content and corresponding transcriptomic data from 'Gulfcoast' and 'O'neal' fruit across various developmental stages, it was identified that four candidate genes encoding anthocyanin acyltransferase (AAT) might be responsible for the accumulation of acetylated anthocyanins in blueberries. Furthermore, higher levels of acetylated anthocyanin content in blueberry fruit after UV-A or 440 nm blue light irradiations was found to be strong positively correlated with the induced expression of <em>VcAAT2</em> in cultivar 'O'neal', implying that UV-A or 440 nm blue light irradiations effectively boosted acetylated anthocyanins in postharvest blueberry fruit, likely through upregulating AAT genes like <em>VcAAT2</em> in 'O'neal'. The study provided insights into the potential mechanisms by which acylation can be promoted to stabilize anthocyanins and thereby maximize their health-promoting antioxidant properties in blueberries.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"222 ","pages":"Article 113371"},"PeriodicalIF":6.4,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092606","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":"Hyperspectral imaging and explainable deep-learning for non-destructive quality prediction of sweetpotato","authors":"Md. Toukir Ahmed ,&nbsp;Arthur Villordon ,&nbsp;Mohammed Kamruzzaman","doi":"10.1016/j.postharvbio.2024.113379","DOIUrl":"10.1016/j.postharvbio.2024.113379","url":null,"abstract":"<div><div>The recent combination of hyperspectral imaging (HSI) and deep learning, particularly through convolutional neural networks (CNN), offers a non-destructive and innovative approach for accurate predictive analysis of post-harvest food products. This study utilized HSI and CNN-based regression to predict the firmness of various sweetpotato varieties by extracting spectral data from images captured with a visible near-infrared HSI system (400–1000 nm). The hyperparameters of CNN were fine-tuned using Bayesian Optimization (BO), which resulted in an 18.42 % reduction in the prediction RMSE compared to the traditional partial least squares regression (PLSR) model. Additionally, explainable artificial intelligence techniques were applied to interpret the CNN model and assess the contribution of the variable wavelengths. The CNN model based on important wavelengths was used to visualize the spatial distribution of firmness in sweetpotato samples. The analytical outcomes highlight the efficiency and growing importance of applying HSI with explainable deep learning for advanced post-harvest analyses.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"222 ","pages":"Article 113379"},"PeriodicalIF":6.4,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092607","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":"Sensory analysis combined with targeted metabolomics reveal quality changes in solid and liquid endosperm of postharvest tender coconut","authors":"Xiaojun Shen ,&nbsp;Jing Li ,&nbsp;Xiwei Sun ,&nbsp;Jia Li ,&nbsp;Dongxia Li ,&nbsp;Yaodong Yang","doi":"10.1016/j.postharvbio.2024.113376","DOIUrl":"10.1016/j.postharvbio.2024.113376","url":null,"abstract":"<div><div>Tender coconuts (TC) primarily consumed for their liquid endosperm (LE), but its quality deteriorates during postharvest storage. Solid endosperm (SE), the only cellular tissue in direct contact with LE, is believed to influence LE quality during storage, although its specific role remains unclear. To explore this, sensory analysis of LE, morphological examination of SE, and targeted metabolomics of sugars, organic acids, amino acids, fatty acids and their derivatives in both LE and SE of postharvest TC were conducted. The analysis identified sugars as the most abundant compounds, with significant decreases in glucose and D-fructose, correlating with reduced sweetness and aftertaste-sweetness in LE. L-malic acid, the predominant organic acid in both LE and SE, remained stable throughout storage. Four sugars (glucose, D-fructose, D-galactose, inositol), two organic acids (cis-aconitic acid and indolelactic acid), and four amino acids (glycine, L-threonine, glycyl-L-proline, ethanolamine) were identified as common biomarkers in both LE and SE samples during TC storage. Several compounds, including glucose, D-fructose, L-cysteine, significantly declined in both LE and SE over time, showing similar changing patterns. SE thickened and became denser during storage, potentially consuming these compounds and altering their levels in LE, thereby affecting LE quality. These findings reveal changing patterns of key metabolites in LE and SE of postharvest TC. This study provides a fundamental understanding of the mechanisms behind LE and SE quality changes during TC storage.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"222 ","pages":"Article 113376"},"PeriodicalIF":6.4,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092601","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":"Role of benzothiadiazole in regulating reactive oxygen species and inhibiting cap opening in Agaricus bisporus during storage","authors":"Ruirui Yang ,&nbsp;Yanan Wei ,&nbsp;Hui Peng ,&nbsp;Ting Wang ,&nbsp;Jianmin Yun ,&nbsp;Yan Yin ,&nbsp;Yang Bi","doi":"10.1016/j.postharvbio.2024.113372","DOIUrl":"10.1016/j.postharvbio.2024.113372","url":null,"abstract":"<div><div>Cap opening is an important aspect of the senescence process in <em>Agaricus bisporus</em>. Benzothiadiazole (BTH), a salicylic acid analogue, is known to induce plant resistance, but its effects on cap opening remain unexplored. This study investigates the effect of BTH on cap opening in <em>A. bisporus</em> (cv. A15). Mushrooms were sprayed with 200 mg/L BTH at the primordium stage. Changes in cap opening rate, cell membrane integrity, reactive oxygen species (ROS) production and scavenging mechanisms, respiration rate, weight loss, surface color and browning index were then monitored at harvest and during storage. The results showed that BTH treatment significantly reduced the cap opening rate during storage. This effect was associated with a decrease in NADPH oxidase (NOX) activity and an increase in the activities of superoxide dismutase (SOD) and catalase (CAT), together with increased levels of thioredoxin (Trx). BTH also increased the activities of ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR) and glutathione reductase (GR), leading to increased levels of ascorbic acid (AsA) and oxidized glutathione (GSSG). These changes contributed to the inhibition of O₂^.- and H₂O₂ production, reduced cell membrane permeability and decreased malondialdehyde levels. BTH significantly reduced the respiratory rate and weight loss of the mushrooms. In addition, BTH also increased the <em>L*</em>, reduced <em>a*</em>, <em>b*</em>, <em>∆E</em> and the browning index of <em>A. bisporus</em>. In conclusion, preharvest spraying of BTH effectively inhibited postharvest cap opening in <em>A. bisporus</em> by modulating ROS homeostasis, reducing respiration rates and weight loss. BTH delayed the browning of <em>A. bisporus</em> and maintained its quality. This study elucidates part of the mechanism by which BTH inhibits <em>A. bisporus</em> cap opening and provides an effective control measure to prevent <em>A. bisporus</em> cap opening.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"222 ","pages":"Article 113372"},"PeriodicalIF":6.4,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092603","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":"When should postharvest avocado fruit rots be inspected via X-rays? Relationship between internal fruit rot development and skin color alteration in “Hass” avocados","authors":"Takahiro Matsui,&nbsp;Shige Koseki,&nbsp;Kento Koyama","doi":"10.1016/j.postharvbio.2024.113369","DOIUrl":"10.1016/j.postharvbio.2024.113369","url":null,"abstract":"<div><div>Internal fruit rot during postharvest ripening poses a significant challenge to maintaining avocado quality. In the present study, we focused on the changes in the skin color of ‘Hass’ avocados during ripening as an indicator of the timing of avocado rotting. The timing of inspection by X-ray imaging is crucial for detecting internal fruit rot, because the causal fungi remain quiescent in unripe fruit. In other words, if avocados are inspected too early using X-ray imaging, potentially rotten fruit may be mistakenly labeled as healthy. In this study, the development of fruit internal rots in 422 ‘Hass’ avocados during five days of ripening was non-destructively observed using X-ray images in three experiments. The relationship between fruit rot severity; changes in skin color metrics, i.e., the values of lightness (L*), chroma (C*), hue angle (h°) from the CIE L*a*b* color system, were analyzed. Internal fruit rot was observed when skin color fell within a specific range despite initial skin color variations within and across experiments. Furthermore, X-ray images showed that 91 %, 70 %, 48 %, and 10 % of potentially rotten fruit on day 4 did not show internal rot symptoms on days 0, 1, 2, and 3 in the storage period, respectively. These results imply that testing fruit before the skin color reaches specific levels would lead to a significant increase in false negatives. Finally, we provided a color bar illustrating the skin color stages after which postharvest inspection should be performed to visually highlight the appropriate inspection timing. This study underscores the importance of the inspection timing of avocados and demonstrates the potential of skin color metrics as objective criteria for determining the timing of inspection.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"222 ","pages":"Article 113369"},"PeriodicalIF":6.4,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092602","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":"Color, volatile organic and phenolic compounds in garlic after curing in a shaded environment at ambient conditions","authors":"Amanda Venturi Corrêa de Almeida ,&nbsp;Evelyn França Pereira ,&nbsp;Ketlin Schneider ,&nbsp;Beto Gomes ,&nbsp;Amanda Tavares Germano ,&nbsp;Dilma Budziak ,&nbsp;Leocir José Welter ,&nbsp;Heloisa Maria de Oliveira ,&nbsp;Joni Stolberg ,&nbsp;Luciano Vitali ,&nbsp;Cristian Soldi","doi":"10.1016/j.postharvbio.2024.113373","DOIUrl":"10.1016/j.postharvbio.2024.113373","url":null,"abstract":"<div><div>Curing is a post-harvest practice aimed at reducing moisture content and minimizing storage losses. In the southern region of Brazil, this process is conducted in shaded conditions at room temperature for 30–90 d, primarily to reduce the moisture content of the garlic. Most studies on the post-harvest period of garlic focus on the storage phase following curing, with limited attention to the quantification of quality parameter changes during the curing process itself. In this study, the volatile compounds in cloves and the chromatic properties, total monomeric anthocyanin content, phenolic compounds, and the anthocyanin malvidin of clove skins were investigated both before and after the curing process, marking the first time these aspects have been explored in the literature. Twelve samples from cultivars Chonan, Ito, Jonas, and Caçador were collected post-harvest and 90 d later, cured in the shade using the producer's existing farm infrastructure. For the garlic bulbs, the results indicate a significant increase in the total content of volatile organic compounds in the garlic cloves after the curing process. It was observed 3.06 times more volatile compounds in cured samples than non-cured ones. Concerning the skin of Chonan variety garlic cloves, changes in color parameters were observed after the curing process, resulting in higher hue angle (1.65 times higher) and chroma (1.08 times higher) values and a lower concentration of total monomeric anthocyanins (2.95 times lower). Furthermore, fourteen phenolic compounds were identified by LCMS technique, with no clear trend observed between cured and non-cured samples. The primary phenolic compounds were protocatechuic acid, <em>p</em>-coumaric acid, ferulic acid, and isoquercetin. This is the first report about the presence of the anthocyanin malvidin in garlic skins, with its occurrence predominantly observed in non-cured Chonan samples. The results demonstrate that shade curing under natural climatic conditions significantly enhances the aromatic intensity and alters the color properties of garlic clove skins, indicating that this method may be effectively used to produce garlic of higher quality.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"222 ","pages":"Article 113373"},"PeriodicalIF":6.4,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092657","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":"Postharvest ripening combined with 1-MCP keeps the shelf quality of kiwifruit after cold storage by regulating the antioxidant system and defense enzymes","authors":"Hongli Ma ,&nbsp;Na Liu ,&nbsp;Guofang Xie ,&nbsp;Shuming Tan ,&nbsp;Yanqun Xu ,&nbsp;Zisheng Luo","doi":"10.1016/j.postharvbio.2024.113370","DOIUrl":"10.1016/j.postharvbio.2024.113370","url":null,"abstract":"<div><div>Suitable postharvest ripening and 1-MCP alone or in combination kept the shelf quality of kiwifruit after cold storage, but their synergistic effect is still unclear. In this study, we explored the impact of postharvest ripening, 1-MCP, and alone or in combination, and the use concentration and timing of 1-MCP on the shelf quality of kiwifruit after cold storage. The results showed that postharvest ripening promotes an increase in respiration rate and ethylene production rate, accumulation of TSS and TA and a decrease in firmness and flavor changes, thereby hastening the ripening and softening of kiwifruit during shelf life after cold storage. However, postharvest ripening combined with 1-MCP improved antioxidants and kept the activities of enzymes in the antioxidant system and disease resistance during shelf life after cold storage, regulating the starch degradation and keeping the soluble sugar content in kiwifruit, suppressing the rapid increase of soft rot and its ripening. In sum, postharvest ripening combined with 1-MCP kept the shelf quality of kiwifruit by regulating the antioxidant system and defense enzymes after cold storage.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"222 ","pages":"Article 113370"},"PeriodicalIF":6.4,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092600","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":"Non-destructive optical characterization of fruit and vegetables by non-contact time-resolved reflectance spectroscopy","authors":"Pietro Levoni ,&nbsp;Fabio Negretti ,&nbsp;Giulia Maffeis ,&nbsp;Maristella Vanoli ,&nbsp;Giovanna Cortellino ,&nbsp;Fabio Lovati ,&nbsp;Davide Contini ,&nbsp;Alessandro Torricelli ,&nbsp;Lorenzo Spinelli","doi":"10.1016/j.postharvbio.2024.113357","DOIUrl":"10.1016/j.postharvbio.2024.113357","url":null,"abstract":"<div><div>A non-contact time-resolved reflectance spectroscopy (TRS) laboratory prototype is presented, which non-invasively probes highly scattering media, retrieving their bulk absorption and reduced scattering coefficients. The performance of the prototype was assessed according to an established procedure for the characterization of diffuse optics devices. Results comparable with those obtained by state-of-the-art TRS devices were achieved for absorption coefficients up to 0.4 cm⁻¹ and reduced scattering coefficients up to 15 cm⁻¹. 150 ‘Abate Fetel’ pears were probed, sorted into three maturity classes based on their absorption coefficient at 671 nm (<span><math><mrow><msub><mrow><mi>μ</mi></mrow><mrow><mi>a</mi></mrow></msub><mn>671</mn></mrow></math></span>) retrieved by a state-of-the-art TRS device. After ninety days of storage at 1 °C, the non-contact prototype monitored the fruit throughout seven days of shelf-life at 20 °C, successfully distinguishing less, medium, and more mature pears, and detecting the expected decrease of <span><math><mrow><msub><mrow><mi>μ</mi></mrow><mrow><mi>a</mi></mrow></msub><mn>671</mn></mrow></math></span>. This prototype, featuring a customized collection optical system, performs non-contact measurements at approximately 10 cm distance from the sample. Thus, it represents a step towards application of TRS technology at industry level in the horticultural sector.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"222 ","pages":"Article 113357"},"PeriodicalIF":6.4,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092674","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":"Preharvest calcium chloride treatments enhance post-harvest peach fruit resistance to Monilinia fructicola-induced brown rot disease","authors":"Shenge Li ,&nbsp;Shaolei Guo ,&nbsp;Jianlan Xu ,&nbsp;ZhiXiang Cai ,&nbsp;Ruijuan Ma ,&nbsp;Mingliang Yu ,&nbsp;Zhijun Shen","doi":"10.1016/j.postharvbio.2024.113368","DOIUrl":"10.1016/j.postharvbio.2024.113368","url":null,"abstract":"<div><div><em>Monilinia fructicola</em>-induced brown rot disease can lead to substantial post-harvest losses in peach fruit, with major economic effects. Calcium chloride (CaCl₂) treatment has been reported to mitigate brown rot in peaches, but the underlying molecular mechanisms involved remain largely unexplored. In this study, preharvest application of CaCl₂ significantly reduced the incidence of brown rot in post-harvest peach fruit. Transcriptome analysis identified 208 differentially expressed genes during the 12–48 h post-infection period in CaCl₂-pretreated peach that were predominantly associated with plant hormone signal transduction, plant-pathogen interaction, flavonoid biosynthesis, and amino sugar and nucleotide sugar metabolism. Preharvest CaCl₂ treatment raised calcium levels and Ca^2 +-sensor activity in infected fruit, boosting <em>PpRBoh</em> activity and transcription coincided with a reactive oxygen species burst. Moreover, CaCl₂ treatments also increased methyl jasmonate (MeJA) content via upregulating expression of <em>PpLCAT3</em>, <em>PpLOX</em>, <em>PpAOS</em>, <em>PpAOC</em>, <em>PpOPR</em>, and <em>PpJMT</em> in <em>α</em>-linolenic acid metabolism, thereby activating the jasmonic acid (JA) signaling pathway. Conversely, CaCl₂ treatment decreased indole-3-acetic acid (IAA) content via downregulating expression of <em>PpTAA1</em>, <em>PpALDH</em>, <em>PpYUCCA1</em> in tryptophan metabolism, leading to a suppression of the IAA signaling pathway. Additionally, CaCl₂ treatment elevated the levels of pathogenesis-related proteins, flavonoids, total phenolics and anthocyanins by stimulating phenylpropanoid metabolism. Furthermore, the weighted gene co-expression network analysis identified six gene modules of co-expresses genes, with blue and green modules significantly linked to the levels of flavonoids, total phenolics, anthocyanins and the activities of CHS, F3H, DFR, ANS, and BZ1, showing that polyphenolics biosynthesis is particularly related to the JA signaling gene <em>PpMYC2</em> and the JAs biosynthesis genes. Consequently, CaCl₂ sprays offer a promising alternative to chemical fungicides for mitigating peach fruit loss caused by <em>M. fructicola</em> infection during storage.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"222 ","pages":"Article 113368"},"PeriodicalIF":6.4,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092655","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":"Effects of packaging and storage temperature on shelled pecan quality","authors":"Vivian E. Yang ,&nbsp;William L. Kerr ,&nbsp;Ronald B. Pegg ,&nbsp;Adrian L. Kerrihard","doi":"10.1016/j.postharvbio.2024.113366","DOIUrl":"10.1016/j.postharvbio.2024.113366","url":null,"abstract":"<div><div>The effect of storage temperature (8, 23, and 32 °C; 65 %RH) and packaging (carboard cartons, vacuum packages, MAP packaging) on the physical properties and consumer acceptability of pecans (‘Stuart’ and ‘Western Schley’) was assessed over 24 months. Higher temperature (&gt;23 °C) had the greatest influence on darkening (lower L*) and the color of ‘Stuart’ pecans remained lighter than ‘Western Schley’ throughout the study. There was a general decline in firmness over time, particularly for samples stored in cardboard cartons. ‘Western Schley’ and ‘Stuart’ pecans had similar overall liking, appearance, flavor, and texture scores (6.9–7.2 on a 9-pt scale). Instrumental measures of firmness and lightness (L*) were most correlated with overall likeability. ‘Stuart’ pecans failed (&gt;25 % rejection) more frequently and earlier in the storage period than ‘Western Schley’. Overall, modified atmosphere packaging (MAP) and storage at 8 °C led to less darkening and sensory changes. Over 24 months, samples stored in cartons failed (&gt;25 % rejection) most frequently. Sensory data indicated that acceptability was most determined by changes in appearance and flavor. At higher temperature (23 or 32 °C) MAP provided the best protection against darkening.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"222 ","pages":"Article 113366"},"PeriodicalIF":6.4,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092672","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}