scholarly journals Effects of Passive- and Active-Modified Atmosphere Packaging on Physio-Chemical and Quality Attributes of Fresh In-Hull Pistachios (Pistacia vera L. cv. Badami)

Foods ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 564
Author(s):  
Abdollatif Sheikhi ◽  
Seyed Hossein Mirdehghan ◽  
Hamid Reza Karimi ◽  
Louise Ferguson
Keyword(s):  
Weight Loss ◽  
Modified Atmosphere Packaging ◽  
Ambient Air ◽  
Quality Attributes ◽  
Quality Parameters ◽  
The Other ◽  
Postharvest Quality ◽  
Carotenoid Content ◽  
Modified Atmosphere ◽  
Anthocyanin Content

The effects of passive- and active-modified atmosphere packaging (passive- and active-MAP) were investigated on the physio-chemical and quality attributes of fresh in-hull pistachios stored at 4 ± 1 °C and 90 ± 5% R.H. Fresh pistachios were packaged under each of the following gas combinations: active-MAP1 (AMA1) (5% O2 + 5% CO2), AMA2 (5% O2 + 25% CO2), AMA3 (5% O2 + 45% CO2), AMA4 (2.5% O2 + 5% CO2), AMA5 (2.5% O2 + 25% CO2), and AMA6 (2.5% O2 + 45% CO2), all balanced with N2, as well as passive-MAP (PMA) with ambient air (21% O2 + 0.03% CO2 + 78% N2). Changes in quality parameters were evaluated after 0, 15, 30 and 45 days of storage. Results demonstrated that AMA6 and PMA had significantly lower (7.96 Log CFU g−1) and higher (9.81 Log CFU g−1) aerobic mesophilic bacteria counts than the other treatments. However, the AMA6 treatment decreased, kernel chlorophyll and carotenoid content, hull antioxidant capacity, and anthocyanin content. The PMA treatment produced a significant weight loss, 0.18%, relative to the other treatments. The active-MAP treatments were more effective than the passive-MAP in decreasing weight loss, microbial counts, kernel total chlorophyll (Kernel TCL), and kernel carotenoid content (Kernel CAC). The postharvest quality of fresh in-hull pistachios was maintained best by the AMA3 (5% O2 + 45% CO2 + 50% N2) treatment.

scholarly journals Potential of Postharvest Coatings to Maintain Freshness of Red-Fleshed Pitaya (Hylocereus costaricensis)

Agriculture ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 892
Author(s):  
Nur Azlin Razali ◽  
Steven A. Sargent ◽  
Charles A. Sims ◽  
Jeffrey K. Brecht ◽  
Adrian D. Berry ◽  
...  
Keyword(s):  
Weight Loss ◽  
Tap Water ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
The Other ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Quality Factors ◽  
Climacteric Fruit

Pitaya is a non-climacteric fruit that has white or red flesh with numerous small, black seeds. It has a high moisture content; however, water loss during handling and storage negatively affects the fresh weight, firmness and appearance of the fruit, decreasing market value. Application of compatible postharvest coatings has been shown to benefit postharvest quality of many crops. The objective of this study was to evaluate the effect of two commercial coatings on weight loss and quality of pitaya during storage. Pitaya fruit were commercially harvested and sorted for uniformity of size and freedom from defects. Fruit were briefly immersed in either a vegetable oil-based coating (VOC; Sta-Fresh® 2981) or a carnauba-based coating (CC; Endura-Fresh™ 6100) according to manufacturer’s recommendations. Fruit immersed in tap water served as a control. Fruit were fan-dried at room temperature for 20 min, then stored at 7 °C with 85% relative humidity (RH) and evaluated for selected physical quality parameters each 5 days during 20 days. After each evaluation, fruit were peeled and frozen for later analysis of soluble solids content (SSC), total titratable acidity (TTA); on day 15 fresh samples were evaluated by an untrained consumer sensory panel. CC prevented exocarp shriveling for 15 days of storage, compared to uncoated pitaya (16.3% area affected); shriveling in VOC was intermediate and not significantly different from the other treatments. Mesocarp firmness remained constant throughout 15 days of storage regardless of treatment. Fruit exocarp h* angle increased slightly by day 20, becoming slightly less red, and there were no negative treatment effects for the other quality factors measured: SSC (11.33%), TTA (0.25%), weight loss (5.5%) or sensory evaluations (appearance, flavor, texture, firmness, and juiciness). After 20 days storage, appearance for fruit from all treatments was rated unacceptable due to development of anthracnose lesions. It was concluded that both CC and VOC maintained quality of pitaya for 15 days at 7 °C and 85% RH by delaying exocarp shriveling.

scholarly journals Influence of Modified Atmosphere Packaging on Storability and Postharvest Quality of Cornelian Cherry (Cornus mas L.) Fruits

2015 ◽  
Vol 7 (1) ◽  
pp. 116-122 ◽  
Author(s):  
Sheida MOHEBBI ◽  
Younes MOSTOFI ◽  
Zabihallah ZAMANI ◽  
Farzaneh NAJAFI
Keyword(s):  
Modified Atmosphere Packaging ◽  
Storage Period ◽  
Visual Quality ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Low Density Polyethylene ◽  
Postharvest Quality ◽  
Modified Atmosphere ◽  
Low Density ◽  
Cornus Mas

Cornelian cherries were stored in two types of polymeric films (low density polyethylene and polypropylene) and three gas combinations 5%O2 + 20%CO2 + 75%N2, 60%O2 + 20%CO2 + 20%N2 and Air) at 1 °C and 90-95% relative humidity for 35 days. Unpackaged cornelian cherries were used as a control. Samples were taken initially and at intervals of 7-days during storage, when quality parameters were measured. Results showed that modified atmosphere packaging (MAP) allowed the stored fruits to retain their weight and visual quality throughout the experiment, regardless of the gas combinations used, while by the end of the storage period the unpackaged fruit lost over 30% of their weight and consequently visual quality. Overall, packaging in 60%O2 + 20%CO2 polypropylene (PP) and air low density polyethylene (LDPE) could retard soluble solid contents, titratable acidity, ascorbic acid, anthocyanin index decrease and pH increase during the storage time. Additionally, such packaging could lead to better surface color preservation than that of fruits kept in open containers. Furthermore, packaging in air low density polyethylene and 60%O2 + 20%CO2 low density polyethylene could delay total phenolics accumulation and increase peroxidase activity to levels higher than those in the control. During the maintenance period, no symptoms of decay were observed.

Use of Modified Atmosphere Packaging with Microperforated Polypropylene Films to Maintain Postharvest Loquat Fruit Quality

2008 ◽  
Vol 14 (1) ◽  
pp. 95-103 ◽  
Author(s):  
A. Amorós ◽  
M.T. Pretel ◽  
P.J. Zapata ◽  
M.A. Botella ◽  
F. Romojaro ◽  
...  
Keyword(s):  
Weight Loss ◽  
Steady State ◽  
Modified Atmosphere Packaging ◽  
Storage Period ◽  
Quality Parameters ◽  
Eriobotrya Japonica ◽  
Modified Atmosphere ◽  
Quality Maintenance ◽  
Color Evolution ◽  
Subsequent Period

Loquat fruits (Eriobotrya japonica Lindl cv. `Algerie') were stored in modified atmosphere packaging (MAP), using five types of microperforated polypropylene (PP) films during 2, 4, and 6 weeks at 2 °C and for a subsequent period of 4 days at 20 °C shelf life (SL) out of the bags. Loquat fruits stored without packaging and in normal air served as control. The atmosphere composition at the steady state depended on the film permeability, ranging from 1.2 to 8.5 kPa for CO2 and from 19.5 to 13 kPa for O2 as film permeability decreased. Weight loss was drastically reduced by MAP conditions. Softening, color evolution, and decreases in sugars and organic acids were delayed, these effects also being evident after the SL period. Scores for visual aspect and facility of peeling were also higher for loquat stored in MAP than for controls. Taking into account results form all quality parameters, the most suitable atmosphere for loquat storage was found to be around 2—4 and 16—18 kPa for CO2 and O2, respectively, reached in the PA-80 and PA-60 films. In addition, the storage period for optimum loquat quality maintenance was established as 2 weeks of cold storage plus SL for control fruits, while under MAP conditions, storage periods could be extended up to 6 weeks plus SL, especially using PA-80 and PA-60 films.

scholarly journals Effect of modified atmosphere packaging on nutraceutical quality and overall appearance of figs stored at 1 °C

2020 ◽  
Vol 48 (4) ◽  
pp. 2292-2305
Author(s):  
María T. MARTÍNEZ-DAMIÁN ◽  
Omegar CRUZ-ARVIZU ◽  
Oscar CRUZ-ALVAREZ
Keyword(s):  
Weight Loss ◽  
Citric Acid ◽  
Modified Atmosphere Packaging ◽  
Morphological Characteristics ◽  
The Other ◽  
Modified Atmosphere ◽  
Evaluation Period ◽  
Statistical Variation ◽  
Combined Use ◽  
Colour Appearance

Ficus carica L. has fruits with an exquisite flavour, colour and aroma. However, due to its morphological characteristics, it has a limited shelf life. The objective of this research was to evaluate the effect of modified atmosphere packaging on nutraceutical quality and the overall appearance of figs stored at 1 °C. The experimental design used was completely randomized with four replications. The combined use of packaging and cold allowed to observe fruits with less weight loss and firmness, maintaining the values of citric acid and VC without significant changes. With the exception of the last evaluation period, no statistical variation was found in the content of TAn, TP and AC. On the other hand, it was also possible to observe a significant impact on the reduction of respiration and ethylene production, which could be corroborated with the conservation of sensory aspects of the fruit (texture, colour, appearance, marketing level, aroma and flavour) from very good to good. The generation of passive atmospheres (packaging) and the use of cold (1 °C) are useful tools in maintaining the nutraceutical quality and appearance of fig fruits, aspects highly appreciated by consumers and marketers of this fruit.

scholarly journals Antifungal Hydroxypropyl Methylcellulose (HPMC)-Lipid Composite Edible Coatings and Modified Atmosphere Packaging (MAP) to Reduce Postharvest Decay and Improve Storability of ‘Mollar De Elche’ Pomegranates

Coatings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 308
Author(s):  
Bruno Di Millo ◽  
Victoria Martínez-Blay ◽  
María Pérez-Gago ◽  
Maricruz Argente-Sanchis ◽  
Amparo Grimal ◽  
...  
Keyword(s):  
Weight Loss ◽  
Hydroxypropyl Methylcellulose ◽  
Chilling Injury ◽  
Modified Atmosphere Packaging ◽  
Postharvest Quality ◽  
Modified Atmosphere ◽  
Edible Coatings ◽  
Fungal Decay ◽  
Promising Treatment ◽  
Natural Decay

Pomegranate exhibits important postharvest quality losses that limit its storage potential, caused mainly by weight loss, chilling injury and fungal diseases. In this work, we evaluated the effect of novel hydroxypropyl methylcellulose (HPMC) edible coatings (ECs) formulated with three different lipids (beeswax (BW), carnauba wax, and glycerol monostearate), as hydrophobic components, and two different GRAS salts (potassium bicarbonate (PBC) and sodium benzoate (SB)), as antifungal ingredients, to control weight loss and natural fungal decay of ‘Mollar de Elche’ pomegranates during storage at 20 °C. Afterwards, selected antifungal ECs and commercial modified atmosphere packaging (MAP) films were assayed alone or in combination to control natural decay and preserve fruit quality of pomegranates stored at 5 °C for 4 months plus 1 week at 20 °C. Results showed that ECs amended with SB reduced pomegranate latent infections caused by Botrytis cinerea and wound diseases caused by Penicillium spp. Moreover, MAP technologies were confirmed as an efficient mean to preserve freshness, prevent fruit shriveling and rind browning, and reduce fungal decay, thus extending storage life of pomegranates. The combination HPMC-BW-SB + MAP was the most promising treatment as it reduced weight loss and decay, without negatively affecting the fruit physicochemical and sensory quality.

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