scholarly journals Improving Storability of “Nanfeng” Mandarins by Treating with Postharvest Hot Water Dipping

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
İbrahim Kahramanoğlu ◽  
Chuying Chen ◽  
Yao Chen ◽  
Jinyin Chen ◽  
Zengyu Gan ◽  
...  
Keyword(s):  
Respiration Rate ◽  
Sugar Content ◽  
Storage Period ◽  
Hot Water ◽  
Control Treatment ◽  
Total Sugar Content ◽  
Titratable Acid ◽  
Fruit Decay ◽  
Mda Content ◽  
Hot Water Dipping

The current research aimed at studying the possibility of improving the postharvest storability of “Nanfeng” mandarins by hot water dipping (HWD) treatment. The research was conducted in two phases. Firstly, two different temperatures (50 and 55°C) were tested for three different dipping durations (2, 3, and 4 min) on the mandarin fruits, and the best combination was defined for the prevention of weight loss and fruit decay. Next, the optimal treatment (HWD at 50°C for 3 min) was used in further studies to test the effects on the postharvest fruit quality attributes. Regular measurements were performed to determine total soluble solid (TSS) content, titratable acid (TA) content, vitamin C (VC) content, total sugar content, respiration rate, malondialdehyde (MDA) content, and activities of superoxide dismutase (SOD) enzyme, polyphenoloxidase (PPO) enzyme, and peroxidase (POD) enzyme. According to the results obtained, HWD treatment was found to prevent the loss of TSS, TA, and VC contents during the storage period. The HWD-treated fruits were also found to have a lower respiration rate and MDA content as compared with control treatment. Furthermore, HWD treatment significantly enhanced the activities of SOD, POD, and PPO which are known to enhance tolerance to lipid peroxidation and are associated with the fruit protection from injuries and pathogens. Present results also suggest that the activation of the SOD and POD enzymes is highly related to the respiratory activities of the fresh produce. This suggests that the HWD can be used to improve the storability of “Nanfeng” mandarins by maintaining the postharvest physical and biochemical quality.

scholarly journals Effects of storage temperature on the physiological characteristics and vegetative propagation of desiccation-tolerant mosses

2018 ◽  
Vol 15 (3) ◽  
pp. 797-808 ◽  
Author(s):  
Yuewei Guo ◽  
Yunge Zhao
Keyword(s):  
Vegetative Propagation ◽  
Storage Temperature ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Storage Period ◽  
Physiological Characteristics ◽  
Regenerative Capacity ◽  
Moss Crusts ◽  
Significant Difference ◽  
Mda Content

Abstract. Mosses, as major components of later successional biological soil crusts (biocrusts), play many critical roles in arid and semiarid ecosystems. Recently, some species of desiccation-tolerant mosses have been artificially cultured with the aim of accelerating the recovery of biocrusts. Revealing the factors that influence the vegetative propagation of mosses, which is an important reproductive mode of mosses in dry habitats, will benefit the restoration of moss crusts. In this study, three air-dried desiccation-tolerant mosses (Barbula unguiculata, Didymodon vinealis, and Didymodon tectorum) were hermetically sealed and stored at five temperature levels (0, 4, 17, 25, and 30 °C) for 40 days. Then, the vegetative propagation and physiological characteristics of the three mosses were investigated to determine the influence of storage temperature on the vegetative propagation of desiccation-tolerant mosses and the mechanism. The results showed that the vegetative propagation of the three mosses varied with temperature. The most variation in vegetative propagation among storage temperatures was observed in D. tectorum, followed by the variation observed in B. unguiculata. In contrast, no significant difference in propagation among temperatures was found in D. vinealis. The regenerative capacity of the three mosses increased with increasing temperature from 0 to 17 °C, accompanied by a decrease in malondialdehyde (MDA) content, and decreased thereafter. As the temperature increased, the chlorophyll and soluble protein contents increased in B. unguiculata but decreased in D. vinealis and D. tectorum. As to storage, the MDA and soluble sugar contents increased after storage. The MDA content of the three mosses increased at each of the investigated temperatures by more than 50 % from the initial values, and the soluble sugar content became higher than before in the three mosses. The integrity of cells and cell membranes is likely the most important factor influencing the vegetative propagation of desiccation-tolerant mosses. A 40-day storage period caused cell injury. Our results suggest that storage temperature can enhance or suppress such injury and change the regenerative capacity of the three mosses. The data indicate that the suitable storage temperature is 4 °C for B. unguiculata and 17 °C for both D. vinealis and D. tectorum.

scholarly journals Influence of Different Storage Methods on Apples Chemical Proprieties

2018 ◽  
Vol 1 (1) ◽  
pp. 316-321 ◽  
Author(s):  
Dorin Sumedrea ◽  
Alina Florea ◽  
Mihaela Sumedrea ◽  
Adrian Asănica ◽  
Radu Coman ◽  
...  
Keyword(s):  
Classical Method ◽  
Sugar Content ◽  
Storage Period ◽  
Total Sugar ◽  
High Humidity ◽  
Fruit Storage ◽  
Total Sugar Content ◽  
Physical Chemical ◽  
Storage Methods ◽  
Factor C

Abstract The objective of preservation is to keep fruit fresh as long as possible after harvesting, without major physical, chemical or biological changes in their composition. The experimental factors underlying it the organization scheme are: A Factor - apple varieties: ‘Idared’, ‘Goldrush’, ‘Florina’, ‘Pinova’, ‘Dalinette’, ‘Golden reinderes‘,‘Golden lassa‘,‘Ariane‘; B factor - storage methods, with three graduations: classical method - low temperature and high humidity (1-4ºC; humidity 85-90%), Janny MT box storage method (1-4 ºC; 95-100% humidity; O2 1-3%; CO2 2-5%), fruit control equipment box-pallets (1- 4ºC; 90-95% humidity; O2 1-3%; CO2 2-5%) and factor C - fruit storage period -at 3, 4 and 5 months after harvest respectively. On the average of the cultivars taken in the study, on observe the tendency to increase the total dry mater and total sugar content, and decrease the total tritrable acidity and vitamin C with the prolongation of the fruit storage period.

scholarly journals Reducing and Total Sugar Content in Onion During Storage in the Republic of Macedonia

2017 ◽  
Vol 17 (1) ◽  
pp. 37 ◽  
Author(s):  
Zvezda Bogevska ◽  
Rukie Agic ◽  
Gordana Popsimonova ◽  
Margarita Davitkovska ◽  
Igor Iljovski
Keyword(s):  
Chemical Analysis ◽  
Sugar Content ◽  
Storage Period ◽  
Reducing Sugar ◽  
Total Sugar ◽  
Winter Period ◽  
Total Sugar Content ◽  
Republic Of Macedonia ◽  
Cold Room ◽  
The Republic

In Macedonia, sweet onion landrace ‘buchinska arshlama’ is traditionally stored during winter period from October until April. The objective of this research was to determine the content of reducing sugar and total sugar in onion bulbs during storage period in a traditional way and in cold rooms. Every month, samples were taken for chemical analysis. The results were statistically processed and tested with t-test. The average reducing sugar content in onion stored in a traditional way was 4.8%, while the average reducing sugar content in onion stored in cold rooms was 4.6%. The average total sugar content in onion stored in a traditional way was 6.0%, while the average total sugar content in onion stored in a cold room was 5.6%. These results showed that onion `buchinska arshlama` can be successfully stored in a traditional way until the beginning of February or longer in cold rooms.

scholarly journals Biostimulative effect of amino acids and green algae extract on capsaicinoid and other metabolite contents in fruits of Capsicum spp.

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Tilen Zamljen ◽  
Metka Hudina ◽  
Robert Veberič ◽  
Ana Slatnar
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Green Algae ◽  
Acid Treatment ◽  
Sugar Content ◽  
Control Treatment ◽  
Hot Pepper ◽  
Large Variability ◽  
Total Sugar Content ◽  
Capsicum Spp

Abstract Background Biostimulants, such as algae extracts or amino acids, are becoming more common in agriculture because the mentality is to make plants more resistant or tolerant to negative environmental factors, rather than using synthetic chemicals (herbicides, insecticides and fungicides), whose use is decreasing year by year, forcing farmers and companies to develop new environmentally friendly products. Results In a field experiment, green algae and amino acids were tested as biostimulants on three hot pepper cultivars. A large variability was observed between the effects of the two biostimulants on the cultivars. Green algae-treated ‘Somborka’ and ‘Habanero Red Caribbean’ cultivars had 10% and 5% higher dry matter in seeds compared to control treatment. Total sugar content was negatively affected by green algae extract and amino acids in pericarp in cultivars ‘Chili AS-Red’ and ‘Habanero Red Caribbean’. Total organic acids content was positively affected by amino acid treatment in ‘Habanero Red Caribbean’ pericarp and placenta, with an increase of 5.5 g and 2.1 g/100 g DW, respectively. In terms of total phenolics, all three cultivars were positively affected by amino acid treatment, but not in each fruit part. In terms of capsaicinoid content, the greatest effect of the two stimulants was on ‘Somborka’, which varied from four (pericarp, seed) to 16 (placenta) times compared to the control. Amino acid extract decreased ‘Habanero Red Caribbean’ capsaicinoid content in placenta by about 40%. Conclusion Amino acids were found to be superior to algal extract, although the effect of both was mostly cultivar specific. For a wider use of biostimulants, it should first be tested whether they are suitable for the cultivar in order to increase and optimize the results. Graphic abstract

scholarly journals Effects of Different Postharvest Storage Methods on the Quality Parameters of Chestnuts (Castanea sativa Mill.)

HortScience ◽  
2015 ◽  
Vol 50 (4) ◽  
pp. 577-581 ◽  
Author(s):  
Engin Ertan ◽  
Esra Erdal ◽  
Gülsüm Alkan ◽  
Burak E. Algül
Keyword(s):  
Cold Storage ◽  
Starch Content ◽  
Sugar Content ◽  
Storage Period ◽  
Castanea Sativa ◽  
Total Sugar ◽  
Total Carbohydrate ◽  
Total Sugar Content ◽  
Fruit Samples ◽  
Total Starch

This trial was initiated in the harvest season of 2010 to determine the effects of traditional and cold storage on the fruit quality properties of chestnuts during the harvest and postharvest periods. Physical and biochemical analyses were conducted on fruit samples collected about once every 2 weeks from the middle of September until the end of December. Specifically, the shell and kernel colors (hue, chroma), water activity (aw), and total sugar (%), total starch (%), total carbohydrate (%), and tannin (ppm) contents were determined. Under traditional and cold storage conditions, the total sugar content of the chestnuts increased whereas the total starch content decreased during the storage period. In addition, the maximum tannin content was measured in fruit that was cold stored for a period of 60 days.

PEMBUATAN TEH FUNGSIONAL BERBAHAN DASAR BUAH MAHKOTA DEWA (Phaleria macrocarpa) DENGAN PENAMBAHAN DAUN STEVIA

2019 ◽  
Vol 5 ◽  
pp. 251
Author(s):  
Herviana Amriani ◽  
Husain Syam ◽  
Mohammad Wijaya
Keyword(s):  
Sugar Content ◽  
Total Sugar ◽  
Hot Water ◽  
Total Sugar Content ◽  
Second Stage ◽  
Randomized Design ◽  
Analysis Technique ◽  
Third Stage ◽  
Phaleria Macrocarpa ◽  
Sugar Levels

The aim of this study was to determine the effect of adding stevia leaves to the production of the crown god fruit tea produced and to find out the reception of the panelists on the produced crown god fruit tea. This study used a one-factor completely randomized design (CRD) method with 6 levels of treatment (Fruit crown god: Stevia leaves), namely 5: 1, 5: 2, 5: 3, 5: 4, 5: 5. The first stage is the red crown of the fruit which is sorted and then washed thoroughly. The second stage of the flesh of the god's crown is then thinly sliced and then dried. The third stage is added dry stevia leaves with various concentrations namely 1 g, 2 g, 3 g, 4 g, and 5 g. The last stage is the dried crown god fruit that has been added to the stevia leaf, brewed with 200 ml of hot water, then stirred evenly. The parameters observed were the antioxidant, polyphenol, and sugar levels. The data analysis technique used in this study was variance analysis which was then processed using SPSS version 22. The results showed that the treatment of adding stevia leaves to the antioxidant, polyphenol and total sugar levels in the treatment of the crown god fruit: Stevia leaves (5: 5) is the best treatment with an antioxidant value of 90.73%, polyphenols 0.6128 mg / ml, and total sugar content of 1.42%.

scholarly journals Retention of Nutritional Quality of Solar Dried Carrot (Daucus carota L.) During Storage

1970 ◽  
Vol 45 (4) ◽  
pp. 359-362
Author(s):  
MM Rahman ◽  
G Kibria ◽  
QR Karim ◽  
SA Khanom ◽  
L Islam ◽  
...  
Keyword(s):  
Vitamin C ◽  
Daucus Carota ◽  
Sugar Content ◽  
Storage Period ◽  
Total Sugar ◽  
The Body ◽  
Physical Parameters ◽  
Rehydration Ratio ◽  
Carotene Content ◽  
Total Sugar Content

Carrot (Daucus carota L.) is a root crop. It belongs to the umbelliferae family. Carrot contains the highest amount of carotene among all the fruits and vegetables which the body converts to vitamin-A. Carrot was dried in a solar drier and packed in polyethylene bags, heat sealed and kept in tin container at ambient temperature for 8 (eight) months. Moisture, reducing sugar, total sugar, starch, protein, fat, vitamin-C, ß-carotene content, energy value and reconstitution time of the product were analysed during its storage period at the interval of 2 months. The initial nutrient of fresh carrot and solar dried carrot for the above parameters were analysed. During the storage period protein, starch and total sugar content decreased slightly, vitamin-C decreased remarkably, â-carotene content decreased very slowly and moisture content increased gradually. Sensory properties such as appearance, colour, flavour, texture, taste and physical parameters such as over-all shrinkage ratio, drying ratio, rehydration ratio of the product were also assessed. By assessing all the parameters it is revealed that the product is acceptable for 6 (Six) months. Key words: Carrot; Solar drying; Storage behaviour; Physical parameters; Nutrients DOI: 10.3329/bjsir.v45i4.7381 Bangladesh J. Sci. Ind. Res. 45(4), 359-362, 2010

Effects of Stem Length and Storage Duration on Sugar Losses in Sweet Sorghum

2018 ◽  
Vol 34 (2) ◽  
pp. 251-259
Author(s):  
Stefano Amaducci ◽  
Alberto Assirelli ◽  
Marco Trevisan ◽  
Alessandra Fracasso ◽  
Enrico Santangelo ◽  
...  
Keyword(s):  
Sweet Sorghum ◽  
Time Course ◽  
Sugar Content ◽  
Storage Period ◽  
Storage Conditions ◽  
Stem Length ◽  
Storage Duration ◽  
Total Sugar Content ◽  
And Storage ◽  
Sugar Loss

Abstract. Sweet sorghum ( (L.) Moench) is a multi-purpose crop, yielding fuel in the form of ethanol from its stem juice, food in the form of grain, and fodder from its leaves and bagasse. The sugars utilized for bioethanol production are contained in the stalks, in an amount varying between 12% and 25% of the fresh biomass, according to the genotypes and harvesting time. However, these carbohydrates can be easily lost during harvest and post-harvest, because of wrong machinery settings and prolonged periods of exposure of the cut material to the action of fermentative agents. For these reasons, the production of biofuel from sweet sorghum is very sensitive to harvest systems and storage methods, as they can influence remarkably the final energetic yield of the crop. The main objective of the present study was to monitor the time course of dry matter and sugar content in sweet sorghum stem over a long-time storage period. The analysis was carried out by dividing the stems into portions of different length in order to test different storage configuration by varying the stem portion stored to simulate the action of different harvest machines. This work has been designed to take into account a larger storage window respect previous experimentation. The research has provided evidence that sugar loss during the storage is highly influenced by the length of the stem portion, as well as by storage conditions. Total sugar content at harvest was on average 23.2%. The decreasing of sugar content continued during the storage period but at different rate for the different portions. At the end of storage, the sugar content of the whole stem was on average 6.6%, while the smallest portion (1/16 of the whole stem) had an average content of 1.0%. Indications on best storage conditions (storage form, storage location, storage ambient condition), as well as technical details regarding new potential harvesting solutions to decrease the speed rate of sugar loss have been provided. Keywords: Biofuel, Harvesting, Storage, Sugar losses, Sweet sorghum.

scholarly journals Evaluation of Xylooligosaccharides Production for a Specific Degree of Polymerization by Liquid Hot Water Treatment of Tropical Hardwood

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 463
Author(s):  
Soo-Kyeong Jang ◽  
Jong-Hwa Kim ◽  
June-Ho Choi ◽  
Seong-Min Cho ◽  
Jong-Chan Kim ◽  
...  
Keyword(s):  
Water Treatment ◽  
Sugar Content ◽  
Degree Of Polymerization ◽  
Hot Water ◽  
Extraction Ratio ◽  
Hot Water Treatment ◽  
Severity Factor ◽  
Total Sugar Content ◽  
Eucalyptus Pellita ◽  
Liquid Hot Water

Eucalyptus pellita is known as attractive biomass, and it has been utilized for eucalyptus oil, furniture, and pulp and paper production that causes a significant amount of byproducts. Liquid hot water treatment depending on combined severity factor (CSF) was subjected to isolate hemicellulose fraction from E. pellita and to produce xylooligosaccharides (XOS). The xylan extraction ratio based on the initial xylan content of the feedstock was maximized up to 77.6% at 170 °C for 50 min condition (CSF: 1.0), which had accounted for XOS purity of 76.5% based on the total sugar content of the liquid hydrolysate. In this condition, the sum of xylobiose, xylotriose, and xylotetraose which has a low degree of polymerization (DP) of 2 to 4 was determined as 80.6% of the total XOS. The highest XOS production score established using parameters including the xylan extraction ratio, XOS purity, and low DP XOS ratio was 5.7 at CSF 1.0 condition. XOS production score evaluated using the CSF is expected to be used as a productivity indicator of XOS in the industry (R-squared value: 0.92).

scholarly journals Evaluation of the efficacy of using ultraviolet radiation and the two extracts of peppermint and aloe vera plants in reduction Fumonisin B1 toxin and growth of Fusarium proliferatum isolated from imported banana fruits

2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Ali Faraj Jubair ◽  
Sabah Lateef Alwan
Keyword(s):  
Ultraviolet Radiation ◽  
High Efficiency ◽  
Aloe Vera ◽  
Fumonisin B1 ◽  
Storage Period ◽  
Hot Water ◽  
Control Treatment ◽  
Peppermint Extract ◽  
Different Origins ◽  
Uv C

"The study was conducted in the laboratories of Faculty of Agriculture/University of Kufa for the period from 24/12/2017 to 24/2/2019 to isolate and diagnose fungi associated with imported bananas fruits (Musa spp.) in local markets. The study included five varieties of bananas for different origins to identify the ability of isolated fungi and their production for mycotoxins, including F. proliferatum. and evaluation of the effectiveness ultraviolet radiation uv-c with a wavelength of 254 nm, for 15 minutes and different concentrations of peppermint and aloevera extracts were evaluated their effectiveness in reducing of Fumonisin B1. The results showed the effect of UV-C and different concentrations of hot water extracts of peppermint and aloe vera to inhibit growth fungus F. proliferatum on PSA medium, a significant effect of peppermint extract,as it showed an inhibition of the growth fungus F. proliferatum. Concentration 1.5%, with amounted to 75.52% compared to control treatment, in which the percentage of inhibition was 0.00%. Ultraviolet light (UV-c) had a significant role in inhibiting the growth of the fungus. Inhibition which increasing the duration of the fungus exposure to ultraviolet (UV) radiation, as the duration of 15 minutes gave the highest rate of inhibition amounting to 81.35 % compared to control treatment of 0.00 %. The results also showed the high efficiency of ultraviolet radiation and peppermint extract at concentration of 1.5% in reducing toxicity of Fumonisin B1 and the protecting banana fruits from fungal infection, in addition to the possibility of prolonging the storage period."

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