Effect of temperature treatment on fruit quality and immunoregulation of Satsuma (<i>Citrus unshiu</i>Marc.) during storage

Deng, Wenjun; Wu, Jicheng; Da, Yurong; Ma, Zhaocheng

doi:10.1002/fsn3.1771

Cited by 9 publications

(6 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The higher the environmental temperature, the lower the compression failure stress of mesocarp. The changing trend obtained appear to be similar to those reported earlier by Lana, Tijskens, and Kooten (2005) for tomato, Yang et al (2007) for bayberry, and Deng, Wu, Da, and Ma (2020) for satsuma. The compression failure stress of the Black pearl , Summit , and Tieton sweet cherry mesocarp at 5°C was 1.81, 1.28, and 1.86 times higher than that at 40°C, respectively (Figure 6a).…”

Section: Resultssupporting

confidence: 90%

Textural thermo‐mechanical properties of sweet cherry for postharvest damage analysis

Han

Fadiji

et al. 2022

Journal of Texture Studies

View full text Add to dashboard Cite

In this study, the textural thermo‐mechanical properties of three sweet cherry varieties were systematically investigated by the puncture test of whole fruit, uniaxial tension of the exocarp, and uniaxial compression test of mesocarp. It was found that the puncture test can not only reflect the shear mechanics of the exocarp in vivo at the tissue level, but it can also characterize the resistance level of fruit to puncture damage at the macroscopic level, particularly when the puncture failure stress is used. The environmental temperature had negative and positive significant effects on the puncture failure stress and the puncture failure deformation of the sweet cherry (p < .05), respectively. The environmental temperature showed a negative significant effect on the failure stress and elastic modulus of the sweet cherry exocarp under tension and mesocarp under compression (p < .05). As the environmental temperature increased from 5 to 40°C, the elastic modulus of the Black pearl, Summit, and Tieton sweet cherry exocarp ranged from 2.28 to 1.72, 2.57 to 1.47, and 1.98 to 1.24 MPa, respectively; and that of mesocarp ranged from 0.33 to 0.21, 0.27 to 0.19, and 0.43 to 0.23 MPa, respectively. The obtained exponential function relationships between environmental temperature and each mechanical parameter are useful for predicting the thermo‐mechanical properties of sweet cherry across a 5–40°C continuous temperature range. This study provided systematical thermo‐mechanical data for predicting the mechanical damage of sweet cherry in postharvest handling using the thermo‐mechanical coupling numerical simulation.

show abstract

Section: Resultssupporting

confidence: 90%

Textural thermo‐mechanical properties of sweet cherry for postharvest damage analysis

Han

Fadiji

et al. 2022

Journal of Texture Studies

View full text Add to dashboard Cite

show abstract

“…It is well-established that storage temperature is a critical factor in determining postharvest fruit quality [ 77 , 78 ]. In this study, we investigated the effects of exogenous SA treatment on the color change in pear fruits during shelf life at room temperature.…”

Section: Discussionmentioning

confidence: 99%

Salicylic Acid Spray Delays Sand Pear Fruit Senescence during Room Temperature Shelf Life by Regulating Antioxidant Capacity and Senescence-Related Genes

Wang,

Li,

Wassie

et al. 2024

Plants

View full text Add to dashboard Cite

‘Whangkeumbae’ (Pyrus pyrifolia) is a variety of sand pear fruit well-known for its smooth surface and good taste. However, the fruit quality is adversely affected by postharvest ethylene production. Therefore, improving postharvest shelf life by regulating fruit senescence is critical to promoting the ‘Whangkeumbae’ fruit industry. Here, we investigated the effect of salicylic acid (SA) spray on fruit senescence in sand pears during room temperature shelf life. Exogenous SA reduced polyphenol oxidase (PPO) activity and malondialdehyde (MDA) content during room temperature shelf life. Additionally, SA effectively maintained the fruit skin coloration and increased the activity of antioxidant enzymes, such as superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX). SA treatment inhibited PpPPO1 expression and upregulated PpSOD1, PpAPX6, and PpGST2 expression. Furthermore, SA application downregulated the expression of PpACO2, PpEIN3a, PpNCED1, and PpAOC2, while upregulating PpNPR-1, PpTAR2, and PpCOMT1 during room temperature shelf life. SA treatment also influenced cell wall metabolism and modification genes by inhibiting PpPG1, PpPME2, and PpCEL3 and inducing PpPGIP1 expression. Additionally, SA treatment affected sugar and acid metabolism genes and increased the expression of PpSPS1, PpSUS1, PpSOT1, PpTMT4, PpSWEET15, and PpcyNAD-MDH, but suppressed the expression of PpcyNADP-ME. The Pearson correlation analysis indicated that PPO activity and MDA content were positively correlated with the expression of PpPPO1, PpACO2, PpEIN3a, PpNCED1, PpAOC2, PpPG1, PpPME2, PpCEL3, and PpcyNDA-MDH. Conversely, these factors were negatively associated with the activities of SOD, POD, CAT, and APX, as well as the expression levels of PpSOD1, PpPOD1, PpCAT1, PpAPX6, PpGST2, PpNPR-1, PpTAR2, PpCOMT1, PpPGIP1, PpSPS1, PpSUS1, PpSOT1, PpTMT4, PpSWEET15, and PpcyNAD-MDH. Our results reveal that exogenous SA could delay fruit senescence in sand pear fruit by regulating various biochemical and molecular mechanisms and can be used to effectively extend fruit shelf life during room temperature storage. However, further research is necessary to determine whether the fruits sprayed with SA are suitable for direct human consumption.

show abstract

“…Then, the resultant extracts were centrifuged (Heraeus Multifuge X1R, Thermo Co., United States) at 5,000 r/min for 15 min, the supernatants were collected and concentrated to one-third of the initial volume using a RE52CS-1 vacuum distillation (Shanghai Yarong Biochemical Instrument Co., Ltd., China). The concentrated solution was sufficiently mixed with 3 times volumes of anhydrous ethanol and stored at 4°C for 24 h. The precipitate was dried by a LGJ-100F vacuum freezing dryer (Thermo Co., United States) at –80°C for 36 h to obtain the crude SLMPs ( 14 ). Sevage reagent was used to eliminate the proteins, and activated carbon was used to remove the pigment from the crude SLMPs ( 15 ).…”

Section: Methodsmentioning

confidence: 99%

“…Briefly, 3.0 g pretreated SLM sample powder was immersed in a 45 mL aqueous PEG complex enzyme solution (E/S ratio of 21 U/g), the mixture was treated by a SB-500DTYultrasonic extraction equipment (Ningbo Xinzhi Biotechnology Co., Ltd., China) under an ultrasonic power of 400 W, ultrasonic times of 2.0 h, and ultrasonic temperature at 80 • C. Then, the resultant extracts were centrifuged (Heraeus Multifuge X1R, Thermo Co., United States) at 5,000 r/min for 15 min, the supernatants were collected and concentrated to onethird of the initial volume using a RE52CS-1 vacuum distillation (Shanghai Yarong Biochemical Instrument Co., Ltd., China). The concentrated solution was sufficiently mixed with 3 times volumes of anhydrous ethanol and stored at 4 • C for 24 h. The precipitate was dried by a LGJ-100F vacuum freezing dryer (Thermo Co., United States) at -80 • C for 36 h to obtain the crude SLMPs (14). Sevage reagent was used to eliminate the proteins, and activated carbon was used to remove the pigment from the crude SLMPs (15).…”

Section: Extraction and Purification Of Sibiraea Laexigata (L) Maxim ...mentioning

confidence: 99%

Purification, structural characterization and immunological activity of Sibiraea laexigata (L.) Maxim polysaccharide

Yang¹,

Liu

Yang

et al. 2022

Front. Nutr.

View full text Add to dashboard Cite

Sibiraea laexigata (L.) Maxim (SLM) has been used as an herbal tea for treating stomach discomfort and indigestion for a long time in china. Polysaccharides have been identified as one of the major bioactive compounds in the SLM. In the present paper, ultrasonic-assisted enzymatic extraction (UAEE) method was employed in polysaccharides extraction derived from SLM using polyethylene glycol (PEG) as extraction solvent, two SLM polysaccharides (SLMPs) fractions (SLMPs-1-1 and SLMPs-2-1) were purified by DEAE Cellulose-52 and Sephadex G-100 chromatography in sequence. Then, the preliminarily structure of the two factions were characterized by chemical composition analysis, molecular weight measurement, UVS, HPLC-PMP, FT-IR, nuclear magnetic resonance (NMR) spectra analysis and SEM. The results showed that SLMPs-1-1 and SLMPs-2-1 with different molecular weights of 1.03 and 1.02 kDa, mainly composed of glucose (46.76 and 46.79%), respectively. The results of structural characterization from FT-IR, 1 H NMR, and SEM revealed that SLMPs-1-1 and SLMPs-2-1 contained the typical pyranoid polysaccharide with α-glycosidic bond and β-glycosidic bond. Furthermore, it was found that SLMPs-1-1 could increase the levels of tumor necrosis factor-α (TNF-α) and interleukin-2 (IL-2), and alleviated the immune organs tissue damage of cyclophosphamide (Cy)-treated mice. RT-qPCR and Western-Blot analysis showed that SLMPs-1-1 could significantly up-regulated the levels of NF-κB, TLR4, which revealed that SLMPs-1-1 could participate in immunosuppressive protection of Cy-treated mice. These findings suggested that the potential of SLMPs-1-1 as an alternative immunostimulator could be used in food and pharmaceutical industries.

show abstract

Effect of temperature treatment on fruit quality and immunoregulation of Satsuma (Citrus unshiuMarc.) during storage

Abstract: As the most primarily produced and consumed citrus fruits worldwide, satsuma (Citrus unshiu Marc.) fruits are rich in high levels of secondary metabolites. And satsuma is becoming increasingly popular with consumers for their eating quality and health benefits

Cited by 9 publications

References 35 publications

Textural thermo‐mechanical properties of sweet cherry for postharvest damage analysis

Textural thermo‐mechanical properties of sweet cherry for postharvest damage analysis

Salicylic Acid Spray Delays Sand Pear Fruit Senescence during Room Temperature Shelf Life by Regulating Antioxidant Capacity and Senescence-Related Genes

Purification, structural characterization and immunological activity of Sibiraea laexigata (L.) Maxim polysaccharide

Contact Info

Product

Resources

About