scholarly journals Effect of Post-Harvest Dipping and Various Packaging Materials on Quality Traits of Mandarin (Citrus Reticulata Blanco.)

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Anup Paudel ◽  
Dhruba Baral ◽  
Himal Acharya ◽  
Madhav Dhital

AbstractAn experiment was carried out to study the effect of post-harvest dipping and various packaging materials on quality traits of mandarin at the laboratory of Project Implementation Unit (Citrus zone) Udayapur, Katari from January to February 2019. The parameters observed were physiological loss in weight, juice content, titrable acidity, total soluble solids, TSS/TA ratio and shelf life. The packaging materials include individual newspaper wrapping, perforated polyethene and corrugated box. Gibberellic acid with a concentration of 100 ppm was used as a dipping material. The experiment was laid out in Completely Randomized Design (CRD) with 8 treatment replicated 3 times. The result showed that among eight treatments combination, fruits treated with GA3 in combination with perforated polyethene recorded minimum physiological loss in weight (1.99%) and control (19.08%). High retention of juice content (40.30%), total soluble solids(12.83 brix) and titrable acidity (0.60%) was recorded in fruits treated with GA3 in combination with perforated polyethene in 24 days of storage. Fruits treated with GA3 in combination with perforated polyethene attained shelf life of 48 days followed by perforated polyethene with a shelf life of 44 days. Finding of the experiment may prove to be helpful in rural area to store mandarin with minimum loss as markets are far from the village.

2016 ◽  
Vol 8 (4) ◽  
pp. 1987-1991
Author(s):  
Rakesh Kumar ◽  
H. R. Sharma ◽  
Manish Kumar

A study was conducted in tomato using an 6 x 6 diallel crossing design excluding reciprocals to quantify the magnitude of heterosis and to identify the best heterotic combinations for post harvest and nutritional quality attributes viz. pericarp thickness (mm), fruit firmness (g/0.503 cm2), shelf life (days), total soluble solids (oBrix), lycopene content (mg/100g) and ascorbic acid (mg/100g) which are considered essential in present day hybrid varieties of tomato from consumer point of view. All the 22 entries (6 parents, 15 F1 hybrids and 1 standard check) were field evaluated using randomized complete block design with three replications during Kharif 2015-16. Highly significant heterosis (5% level of significance) of positive nature was found for pericarp thickness (22.90%, 32.20% and 5.62%), fruit firmness (17.32%, 56.72% and 9.21%), shelf life (17.54%, 24.87% and 9.57%), total soluble solids (24.44%, 51.44% and 34.20%), lycopene content (28.75%, 35.05% and 25.63%) and ascorbic acid (19.07%,30.00% and 17.85%) over the better, mid and standard check, respectively. Three promising crosses viz., Solan Lalima x EC-1055, Solan Lalima x EC-1057 and Solan Lalima x EC-1058 were identified as high yielding F1 combinations having superiority to post harvest and nutritional quality traits in tomato and can be promoted for release and commercial cultivation.


2019 ◽  
pp. 1-11
Author(s):  
Augustin Schinzoumka Passannet ◽  
Jean Aghofack-Nguemezi ◽  
Donatien Gatsing

Mango is one of the main fruits grown in Chad. However, it is prone to high post-harvest losses due to lack of adequate distribution networks, appropriate harvesting and conservation methods. The objective of this study was to test the effectiveness of coatings based on extracts of Allium sativum (garlic), Zingiber officinale (ginger) and Spirulina platensis (spirulina) on their conservation. Shelf life, weight loss, firmness, pH and total soluble solids content of mangoes were evaluated. The coated mangoes had excellent brillance compared to control mangoes. The coatings based on the extracts of A. sativum, S. platensis and Z. officinale increased respectively the means shelf life of mangoes to 18, 19 and 24 days. Weight losses were 21% for control mangoes while they were 13% for mangoes coated using mixture containing extracts of A. sativum and S. platensis and 11% for mangoes coated with Z. officinale. Coatings based on extracts of Z. officinale and S. platensis had statistically comparable effects on the firmness of mangoes but significantly higher than those of A. sativum extracts and controls after the 10th day. pH values and total soluble solids content (TSSC) values of control mangoes were significantly higher than those of coated mangoes. On day 10 after treatment, chlorophylls were absent from the peel of control mangoes whereas they were still present in the peel of coated mangoes. The mangoes coated with extract of Z. officinale reached a shelf life of 24 days. This shelf life was significantly higher than that of mangoes coated with other types of extracts and control mangoes. The coating with Z. officinale extract slowed considerably the ripening of mangoes. It can be recommended for conservation of mangoes in fresh.


2020 ◽  
pp. 1670-1674
Author(s):  
Léo Omar Duarte Marques ◽  
Jorge Atílio Benati ◽  
Josiane Duarte de Carvalho ◽  
Paulo Mello- Farias ◽  
Tâmara Foster Acosta ◽  
...  

Strawberries show a short post-harvest conservation period. To improve it, the effect of different post-harvest storage temperatures, conservation methods and three different storage periods were tested on ‘San Andreas’ strawberry, right after harvest. The experiment consisted of a three factorial 2 x 5 x 3 (temperatures x methods x storage periods), arranged in a completely randomized design (CRD). Four replications were used for each treatment, each with five sampling units. The treatments tested were: storage temperatures - 1°C and 18°C (T1 and T2); conservation methods - sodium hypochlorite 0.5% (C1), potato starch film 6% + sodium hypochlorite 0.5% (C2), cassava starch film 6% + sodium hypochlorite 0.5% (C3), UV-C radiation (C4), and control (no treatment) (C5); Storage period - 3, 6, and 9 days (D1, D2, D3, respectively). The parameters assessed were flesh firmness, color (hue angle, chroma, and luminosity), soluble solids (SST) and mass loss. Fruit kept at a temperature of 1°C showed better traits than those stored at 18°C, regardless of the method and storage period. Among the conservation methods tested, only UV-C and sodium hypochlorite improved some attributes (firmness and SST) when associated with refrigeration at 1°C. The use of potato and cassava starch is not as expected since they do not improve conservation and the total soluble solids contents.


Author(s):  
Umesh Timilsina ◽  
Arjun Kumar Shrestha ◽  
Arbind Srivastava ◽  
Anuja Rijal

A study entitled “Ripening regulation and post-harvest life improvement of banana Cv. Malbhog using ethephon” was under taken to assess the effect of ethephon on banana fruit ripening and quality parameters after harvest under ordinary room condition. The experiment was conducted at Central laboratory of Post-Harvest Horticulture of Agriculture and Forestry University, Rampur, Chitwan, Nepal in 2016. The experiment was laid out in Completely Randomized Design (CRD) in which the experiment comprised of five treatments; control(no use of ethephon), ethephon @ 250 ppm, ethephon @ 500 ppm, ethephon @ 750 ppm and ethephon @ 1000 ppm replicated four times. On the final day of storage, the maximum physiological loss in weight was observed with ethephon @ 1000 ppm (24.52 %) and the colour score (7.75). Similarly the highest Total Soluble Solids content (19.32ºBrix) was observed with ethephon @ 1000 ppm and the maximum shelf life was found with control (14 days). From the experiment, the use of ethephon @ 1000 ppm and ethephon @ 750 ppm was found more effective regarding banana ripening and other various post harvest parameters and in case, if the bananas are to be stored for long duration, the control treatement is recommended to the farmers because it increases the shelf life.


2017 ◽  
Vol 9 (1) ◽  
pp. 85-93
Author(s):  
Sukhjit Kaur

An experiment was done to assess the effect of various post -harvest treatments of ethrel on ripening behaviour and post -harvest quality of mango cv. Amrapali (Mangiferaindica L.) during storage at Punjab Agricultural University, Regional Research Station, Gurdaspur during the years 2013-14 and 2014-15. The experiment was planned under completely randomized design (CRD) with three replications. The treatment units was six fruits per replication. Total five treatments and control were applied. The objective of this work was to evaluate the effects of various concentrations of ethrel (500 ppm, 750 ppm, 1000 ppm,1250 ppm, 1500 ppm and control ) on shelf life of mango fruits when stored under ambient conditions. The treated fruits were assessed for physiological changes fruit colour, flavour/aroma, organoleptic taste, marketability, ripening, specific gravity, moisture loss, decay, physiological loss in weight (PLW), total soluble solids (TSS), acidity and sugars. The observations were recorded at 5, 8 and 11 days after storage. At 11th day of storage these mangoes exhibited deep yellow fruit colour with excellent flavour, organoleptic taste and highly acceptable marketability at 1000 ppm ethrel treatment as compared to other ethrel doses. Fruit ripening (100%), specific gravity (0.84), TSS(23°Brix) and sugars(20.65%) were highest in the fruits treated with 1000ppm ethrel as compared to rest of treatments at 11th day of storage. Lowest moisture loss (8.5%), decay (1%), PLW(12.50%) and acidity(0.12%) were observed in the fruits treated with 1000ppm of ethrel as compared to rest of treatments at 11th day of storage. The beneficial effect of the present study is to overcome the problem of uneven and late ripening of Amrapali mango by postharvest treatment of ethrel at 1000 ppm at their mature green stage to develop typical fruit flavour with excellent fruit quality.


DYNA ◽  
2020 ◽  
Vol 87 (212) ◽  
pp. 267-276
Author(s):  
Claudia Lorena Macias Socha ◽  
Julia Constanza Reyes Cuellar

The guava (Psidium guajava L.), is a nutritious fruit which is of climacteric nature and highly perishable. This fruit is grown in Santander and Boyacá and 90% of its use is in the agro-based industry. Post-harvest losses of this fruit have a great impact on the economy of the region. In order to prolong the shelf life of the fruit, a post-harvest treatment based on the encapsulation of 3 mM Citral in liposomal nanocontainers composed of 10,12-pentacosadiynoic acid and Lecithin was devised. The characterization of the nanocontainers encapsulating Citral was performed by fluorescence and DLS spectroscopy. The treatment's effectiveness in the fruits was evaluated for 15 days using the following parameters: weight loss, color, total soluble solids, acidity, ripening index, and Vitamin C concentration. The results show a better appearance in the treated fruits with respect to untreated fruits (Blank) for up to 12 days of storage.


Bragantia ◽  
2016 ◽  
Vol 75 (4) ◽  
pp. 396-400 ◽  
Author(s):  
Marcos Toebe ◽  
Vanderlei Both ◽  
Fabio Rodrigo Thewes ◽  
Alberto Cargnelutti Filho ◽  
Auri Brackmann

ABSTRACT The study of linear associations between traits is critical for the selection or the indirect quantification of the interest traits. Thus, the objective of this research was to evaluate the linear relationships among traits of apple fruits, in ‘Royal Gala’ and ‘Fuji’ cultivars, at harvest and after cold storage. In this investigation, 120 fruits of ‘Royal Gala’ and 120 fruits of ‘Fuji’ at harvest and 120 fruits of ‘Royal Gala’ and 111 fruits of ‘Fuji’ after cold storage were evaluated. Morphological/productive (mass, longitudinal diameter, major and minor transverse diameters) and quality traits (firmness, total soluble solids, titratable acidity, juice content, ethylene production and respiration) were measured. In each cultivar (‘Royal Gala’ and ‘Fuji’) and time of evaluation (at harvest or after cold storage), the Pearson’s linear correlation coefficients among the pairs of traits and the canonical correlation among the groups of morphological/productive and of quality traits were calculated. At harvest, the apple fruits with higher mass had lower firmness and higher total soluble solids, regardless of the cultivar. After cold storage, the apple fruits with higher mass had higher total soluble solids and lower respiration, regardless of the cultivar, and higher juice content in the ‘Fuji’ cultivar.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Magda M. Khattab ◽  
Hamed H. Hamed ◽  
Nahla A. Awad ◽  
Hossam A. ElKorashy

Mango fruits being climacteric have a short shelf life; and post-harvest dipping is considered as one of the most popular techniques to prolong its shelf life dipping based on starch, olive oil, beeswax and sodium benzoate have been evaluated with reference to the shelf life and quality of mango Naomi cultivar fruit harvested at full stage of maturity. The dipped and undipped (control) fruits were stored on the lab’s tables in the room conditions (25±5 <C and 65-70% R.H.), samples of each treatment were randomly taken every 4 days to evaluate after harvest dipping treatments effect during shelf life of fruits. Results indicated that every dipping treatment has a significant impact on the quality and shelf life of the fruit. The beeswax and olive oil treated mango fruits had the longest shelf life with good quality, while the shelf life of untreated (control) fruit was the shortest. The total soluble solids and sugar contents were also high in starch-treated fruit. The overall data conclude that beeswax was the best post-harvest dipping material, which might be due to the fact that beeswax is an antioxidant and antimicrobial as well as hydrophobic in nature.


Author(s):  
Sirisilla Saharika ◽  
Veena Joshi ◽  
P. Prasanth ◽  
D. Vijaya

Aims: To evaluate the potentiality of surface coatings and packaging for achieving extended shelf life with enhance fruit quality attributes in Guava under ambient storage condition. Study Design:  The lab experiment conducted in complete randomized design three replications on Allahabad safeda of Guava. Place and Duration of Study:  The experiment was conducted during November 2019 at College of Horticulture, Sri Konda Laxman Telangana State Horticultural University, Rajendranagar, Hyderabad. Methodology: Guava freshly harvested fruits were coated with two different coatings Chitosan (1%), Aloe vera gel (25%) and three different packaging materials viz., Polypropylene 100 gauge, HDPE 50 microns and LDPE 50 microns comprising of six treatments with four replications in Completely Randomized Design. Periodically effects of surface coatings were observed for physiological loss in weight, Shelf Life (days), Firmness (Kg/cm2), Total Soluble Solids (%), Titrable Acidity (%), Ascorbic Acid (mg/100g), Total Sugars (%), Reducing Sugars (%), Non-Reducing Sugars (%). Results: With respect to physical parameters, lowest decay percent (13.28%), minimum PLW (14.61%) was recorded in T2- Chitosan 1% + HDPE 50 microns and highest was recorded in T6- Aloe vera 25% + LDPE 50 microns (15.49% &18.80%) on 12th day of storage. Highest shelf life (12.91 days) was recorded in T2- Chitosan 1% + HDPE 50 microns which was at par with T5- Aloe vera 25%+ HDPE 50 microns (12.89 days) and lowest shelf life (11.25 days) was recorded in T1 - Chitosan 1% + PP 100 gauge. Highest TSS (10.33oB), From this study it could be concluded that surface coatings, packaging materials found to have influence on the shelf life and quality of guava. Among the packaging materials HDPE 50 microns was superior followed by PP 50 microns and LDPE 100 gauge. Conclusion: The combined effect of surface coatings and packaging materials revealed that T2- Chitosan 1% + HDPE 50 microns followed by T5- Aloe vera 25%+ HDPE 50 microns were found to be superior over other treatments with respect to physical, shelf life and quality parameters.


Food Research ◽  
2020 ◽  
Vol 4 (3) ◽  
pp. 746-752 ◽  
Author(s):  
S.S. Gaikwad ◽  
B.K. Sakhale ◽  
R.F. Chavan

Present research work was undertaken to study the effect of 1-Methyl Cyclopropene (1- MCP) on quality and shelf life of the mango fruits (Cv. Alphanso). The freshly harvested matured mango fruits were treated with fungicide at 0.5 µL/L concentration for 10 mins followed by washing and cleaning. The fruits were then exposed to different concentrations of 1-MCP viz. 0.5, 1.0, 1.5 and 2 µL/L at 20°C for 12 and 24 hrs respectively along with control fruits in an airtight chamber. The results obtained after conducting the above experiments indicated that the ripening was delayed by 1-MCP at early stages and shelf life of the fruit increases as the concentration of 1-MCP increased. Various physico-chemical changes such as physiological loss in weight (PLW), total soluble solids, surface colour, titrable acidity, ascorbic acid content and firmness of fruit was majorly influenced by 1-MCP which showed lower physiological loss in weight (11.6%), gradual increase in TSS from 9.7 to 22.1°Brix and colour from -3.63 to 2.59, considerable decrease was observed in titrable acidity from 1.34 to 0.14%, Ascorbic acid content from 81.18 to 25.2 mg/100 g and texture decreased from 312 to 66 gf respectively as compared to rest of the treatments and control fruits.


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