Nondestructive measurement of soluble solid content of navel orange fruit by visible–NIR spectrometric technique with PLSR and PCA-BPNN

LWT ◽  
2010 ◽  
Vol 43 (4) ◽  
pp. 602-607 ◽  
Author(s):  
Yande Liu ◽  
Xudong Sun ◽  
Aiguo Ouyang
Keyword(s):  
Solid Content ◽  
Soluble Solid Content ◽  
Navel Orange ◽  
Nondestructive Measurement ◽  
Spectrometric Technique ◽  
Soluble Solid ◽  
Orange Fruit

scholarly journals Benzothiazole (BTH) Induced Resistance of Navel Orange Fruit and Maintained Fruit Quality during Storage

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Huaying Du ◽  
Ying Sun ◽  
Rui Yang ◽  
Wei Zhang ◽  
Chunpeng Wan ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Radical Scavenging Activity ◽  
Disease Incidence ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Solid Content ◽  
Soluble Solid Content ◽  
Navel Orange ◽  
Titratable Acid ◽  
Orange Fruit

Current research aimed at studying the effect of benzothiazole (BTH) on the fruit quality and resistance against Penicillium italicum (P. italicum). Recently, a synthetically prepared novel BTH was introduced that elicits the induction of resistance against various diseases of fruits. However, little was reported on the effect of BTH on the disease resistance and fruit quality of postharvest navel orange fruit. In this study, 50 mg·L−1 BTH significantly reduced the decay rate of fruits during 36 days of storage at 20 ± 0.5°C ( P < 0.05 ). BTH markedly inhibited the weight loss rate in fruits ( P < 0.05 ) and effectively maintained higher soluble solid content (SSC), titratable acid (TA), and vitamin C (VC) content compared with control navel orange fruits. Further, BTH significantly suppressed the increase of disease incidence and lesion area of orange fruits challenged with P. italicum ( P < 0.05 ). BTH treatment significantly enhanced antioxidant capacity (DPPH, ABTS radical scavenging activity, and reducing power), and superoxide dismutase (SOD) and peroxidase (POD) activities were significantly increased, while the activity of catalase (CAT) was opposite to the former ( P < 0.05 ). The activities of β-1,3-glucanase (GLU), phenylalanine ammonia-lyase (PAL), and chalcone isomerase (CHT) were significantly higher in BTH-treated navel orange fruits ( P < 0.05 ). Our results suggested that BTH treatment may be a promising treatment for maintaining the quality and inhibiting blue mold of postharvest navel orange in the future.

Visualized Detection of Soluble Solid Content Distribution of Navel Orange Based on Hyperspectral Diffuse Transmittance Imaging

2017 ◽  
Vol 38 (5) ◽  
pp. 685-691
Author(s):  
介邓飞 JIE Deng-fei ◽  
李泽海 LI Ze-hai ◽  
赵竣威 ZHAO Jun-wei ◽  
连裕翔 LIAN Yu-xiang ◽  
魏 萱 WEI Xuan
Keyword(s):  
Content Distribution ◽  
Solid Content ◽  
Soluble Solid Content ◽  
Navel Orange ◽  
Soluble Solid ◽  
Visualized Detection

Role of Phospholipase D Inhibitor in Regulating Expression of Senescencerelated Phospholipase D gene in Postharvest Longan Fruit

2019 ◽  
Vol 14 (7) ◽  
pp. 649-657 ◽  
Author(s):  
Li Li ◽  
Jiemin Li ◽  
Jian Sun ◽  
Ping Yi ◽  
Changbao Li ◽  
...  
Keyword(s):  
Phospholipase D ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Significant Inhibition ◽  
Solid Content ◽  
Total Soluble Solid ◽  
Total Phenolic ◽  
Soluble Solid Content ◽  
Soluble Solid ◽  
Pericarp Browning

Background: Phospholipase D (PLD)is closely related to browning and senescence of postharvest longan fruit. Objective: This study investigated the effects of 2-butanol (a PLD inhibitor) on the expression and regulation of PLD during storage of longan fruit at a low temperature. Methods: Senescence-related quality indices showed that the 2-butanol-treated fruit presented lower pericarp browning index, pulp breakdown index and total soluble solid value than the untreated fruit. Results: The fruit treated by 60 µL/L 2-butanol exhibited the strongest inhibition on senescence, which significantly delayed changes in weight, titratable acidity content, total soluble solid content and ascorbic acid content. This treatment maintained a high level of total phenolic content and caused significant inhibition on pericarp browning and pulp breakdown. Through ELISA method, 60 µL/L 2-butanol treatment also reduced PLD activity. Real-time RT-PCR (RT-qPCR) results showed that PLD mRNA expression level was inhibited by 60 µL/L 2-butanol within 15 days. Western-blotting results further confirmed the differential expression of PLD during storage, and a relatively higher expression for PLD protein was found in control compared to the 2-butanoltreated fruit during 15-d storage. Conclusion: These results provided a scientific basis and reference to further investigating postharvest longan quality maintenance by regulating the PLD gene expression.

scholarly journals Effect of Cross-Linked Alginate/Oil Nanoemulsion Coating on Cracking and Quality Parameters of Sweet Cherries

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 449
Author(s):  
Camilo Gutiérrez-Jara ◽  
Cristina Bilbao-Sainz ◽  
Tara McHugh ◽  
Bor-Sen Chiou ◽  
Tina Williams ◽  
...  
Keyword(s):  
Titratable Acidity ◽  
Quality Parameters ◽  
Solid Content ◽  
Postharvest Quality ◽  
Soluble Solid Content ◽  
Nutritional Values ◽  
Quality Properties ◽  
Vapor Transfer ◽  
Sweet Cherries ◽  
Soluble Solid

The cracking of sweet cherries causes significant crop losses. Sweet cherries (cv. Bing) were coated by electro-spraying with an edible nanoemulsion (NE) of alginate and soybean oil with or without a CaCl2 cross-linker to reduce cracking. Coated sweet cherries were stored at 4 °C for 28 d. The barrier and fruit quality properties and nutritional values of the coated cherries were evaluated and compared with those of uncoated sweet cherries. Sweet cherries coated with NE + CaCl2 increased cracking tolerance by 53% and increased firmness. However, coated sweet cherries exhibited a 10% increase in water loss after 28 d due to decreased resistance to water vapor transfer. Coated sweet cherries showed a higher soluble solid content, titratable acidity, antioxidant capacity, and total soluble phenolic content compared with uncoated sweet cherries. Therefore, the use of the NE + CaCl2 coating on sweet cherries can help reduce cracking and maintain their postharvest quality.

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