Effect of modified atmosphere packaging on quality and shelf life of baby leaf lettuce

Islam, Mohammad Zahirul; Lee, Y.T.; Mele, Mahmuda Akter; Choi, In-Lee; Jang, Dong-Cheol; Ko, Youngkwon; Kim, Y.D.; Kang, Ho-Min

doi:10.3920/qas2019.1626

Cited by 9 publications

(4 citation statements)

References 4 publications

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“…In the paper of Hunter et al (2017), levels of phenolic compounds associated with polyphenol oxidase discoloration were shown to be similar in immature, mature, and over-mature lettuce. Islam et al (2019) also found that the phenolic concentration decreased during storage of romaine lettuce in modified atmosphere packaging at 8°C. However, the results showed that small differences in the content of phenolic compounds were found among the maturity stages.…”

Section: Phenolic Compoundsmentioning

confidence: 82%

Effect of Maturity Stages on the Quality of Cold Storage Iceberg Lettuce (Lactuca sativa var. capitate) for Export

Alemu,

Oanh

2024

vjas

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Iceberg lettuce is one of the most important vegetables economically and nutritionally, but its perishable nature poses challenges for storage and long-distance transportation. This study investigated the effect of maturity stages on the quality of iceberg lettuce for export under cold storage conditions. A completely randomized design with three replications was used to evaluate four maturity stages based on days after planting (DAP): 52, 55, 58, and 61 DAP. The lettuce heads were stored at 3±2oC and a 95% relative humidity, and quality parameters were analyzed every three days until the end of storage. Sensory properties, weight loss, color change, total soluble solids, total phenolics, and decay rates were evaluated. The results showed that maturity stages significantly (P <0.05) affected the quality attributes of iceberg lettuce and that harvesting at the optimal stage is very important. Findings from this study confirmed that the quality parameters were preserved for the 58 DAP samples throughout the storage time. They indicated that at three weeks of storage time, the lowest weight loss (5.9%), color change (14.1), and decay rate (8.3%), and the highest sensory analysis (5 scores) and appearance were shown by the 58 DAP maturity stage lettuce. Therefore, harvesting iceberg lettuce at 58 DAP is recommended for long-distance exportation.

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Section: Phenolic Compoundsmentioning

confidence: 82%

Effect of Maturity Stages on the Quality of Cold Storage Iceberg Lettuce (Lactuca sativa var. capitate) for Export

Alemu,

Oanh

2024

vjas

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“…In terms of the overall quality of the whole lettuce examined via a panel test at the end date of storage, the 50,000 cc treatment at 2 • C had the best condition, obtaining three points, which was the limit for the marketable value, while the 10,000 cc treatment at 8 • C was good (Table 2). The overall quality of the baby leaf lettuce during storage at 8 • C was best maintained when packaged with a 20,000 cc•m −2 •day −1 •atm −1 OTR film compared to the perforated and 1300; 20,000; 40,000; 100,000 cc films, because the loss of fresh weight was less than 0.2%, and the CO 2 concentration was 1.55-4.90% of the 20,000 cc treatment [28]. In this study, the PF treatment showed the lowest overall quality.…”

Section: Biochemical Traits and Sensory Qualitiesmentioning

confidence: 99%

Evaluation of the Storage Characteristics in Maintaining the Overall Quality of Whole and Fresh-Cut Romaine Lettuce during MA Storage

et al. 2021

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This study aimed to examine the effect of modified atmosphere (MA) storage on the quality and storability of romaine lettuce. Whole and fresh-cut romaine lettuce were packaged with 1300; 10,000; 50,000; 100,000 cc m−2·day−1·atm−1 O2 transmission rate (OTR) films and stored at 2 or 8 °C for 15 days. The respiration and ethylene production rates before pre-cooling were higher in fresh-cut lettuce than in whole romaine lettuce. The reduction in fresh weight for whole and fresh-cut romaine lettuce during storage was less than 0.5%. The CO2 concentration was less than 2%, except for the 1300 cc treatment (at 8 °C for whole and fresh-cut lettuce) and 10,000 cc (in fresh-cut lettuce). At the end date of storage, the overall quality of the whole lettuce was good, the off-odor was lower in the 10,000 cc treatment, and the 50,000 cc treatment at 8 °C led to good overall quality in the fresh-cut lettuce. The chlorophyll content of the whole lettuce was maintained at a higher level in the treatment of 10,000 cc at 8 °C, while it was higher in the 50,000 cc treatments at 2 and 8 °C in the fresh-cut lettuce. Correlation and PCA confirmed that the main factors affecting the storability and quality of romaine lettuce were fresh weight loss rate, off-odor, and the concentration of CO2. In addition, the storage characteristics of whole and fresh-cut lettuce were opposite to 0 in PC1 and PC2, indicating that the storage characteristics were different depending on the processing type.

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“…Hence, for fresh weight marketability, a study on pechay by Gonzales et al (2015) was used as the basis wherein greater than or equal to 24 g was considered marketable; a lesser weight was non-marketable. Islam et al (2019) reported that Brassica oleracea showed a significant relationship between the usage of cow dung and the highest fresh weight while minimum values were observed in the control (i.e., no organic amendment). 11).…”

Section: Marketable and Non-marketable Fresh Weightmentioning

confidence: 99%

Growth and Yield of Screenhouse-grown potted Pechay (Brassica rapa L. ssp. chinensis cv. Black Behi) in selected Davao-produced Composts

Lagon,

Abad,

Bayogan

et al. 2022

MJST

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Pak choi (Brassica rapa subsp. chinensis), locally called pechay, is a nutritious and sought-after vegetable among Asian consumers as its edible petioles and green leaves are suitable in various recipes. The use of composts and organic amendments is integral to organic agriculture which is promoted in Davao City, Philippines. However, there are no published local studies in the city on the effect of recently formulated composts on crops. Thus, this study explored how these compost amendments affect the growth and yield of potted Black Behi pechay under screenhouse conditions using a completely randomized design. Results revealed that germination was higher in seeds sown in pure potting mix (90 to 94 %) and vermicompost-amended potting mixes (94 to 100 %) than with Dr. Bo’s Biofertilizer (DBB) (75 to 92%). Mean plant height (18.42 cm), leaf length (10.31 cm) and leaf width (5.89 cm) were highest in plants grown in potting mixes amended with 20% Tacunan vermicompost (Tacunan). Furthermore, there were pest and disease incidences in plants under all treatments but the least incidence was observed in plants grown in DBB. Total fresh weight (14.71 g), dry weight (0.76 g) and marketable fresh weight (12.19 g) obtained were exhibited by plants grown in 20% Tacunan. Total biomass, however, was highest in the urea-amended potting mix (15.42%). Results revealed that the application of composts positively influenced the growth and development of Black Behi pechay with 20% Tacunan as the recommended amendment.

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Effect of modified atmosphere packaging on quality and shelf life of baby leaf lettuce

Cited by 9 publications

References 4 publications

Effect of Maturity Stages on the Quality of Cold Storage Iceberg Lettuce (Lactuca sativa var. capitate) for Export

Effect of Maturity Stages on the Quality of Cold Storage Iceberg Lettuce (Lactuca sativa var. capitate) for Export

Evaluation of the Storage Characteristics in Maintaining the Overall Quality of Whole and Fresh-Cut Romaine Lettuce during MA Storage

Growth and Yield of Screenhouse-grown potted Pechay (Brassica rapa L. ssp. chinensis cv. Black Behi) in selected Davao-produced Composts

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