Fresh-Cut Produce Quality

Senesi, N.; Fontana, E.

doi:10.1016/b978-0-12-408137-6.00009-0

Cited by 11 publications

(5 citation statements)

References 151 publications

(165 reference statements)

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“…In detail, DMC increased as nitrogen fertilization decreased, passing from 4.6% on average under T1 to 6.7% under T6. These results could be explained by the osmotic effect caused by nitrate accumulation as reported by Tei et al [29] and corroborate earlier studies indicating that the leaf nitrate content is correlated positively with plant fresh weight, but negatively with dry matter content [21,30]. The lettuce DMC during the spring trial was not only affected by N fertilization but was directly correlated with light intensity.…”

Section: Discussionsupporting

confidence: 91%

“…Many hydroponic systems have been used in recent years, such as gravel beds, floating systems, and nutrient film techniques [19]. The advantages of using these systems are that they (i) originate in a clean raw material with low microbiological contamination due to reduced contact between leaves and growing substrate [20] and (ii) yield ready-to-use leaf vegetables requiring gentle washing procedures that cause only minimal stress to the leaf tissue [21]. Hydroponic methods are very attractive to growers because they entail lower labor costs than those of conventional soil-based methods.…”

Section: Introductionmentioning

confidence: 99%

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Reducing Nitrate Accumulation and Fertilizer Use in Lettuce with Modified Intermittent Nutrient Film Technique (NFT) System

et al. 2020

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Lettuce (Lactuca sativa L.) is a leading greenhouse-grown vegetable. However, nitrate (NO3−) accumulation in leaves remains a major issue. The aims of this research were: (i) to test the modified intermittent Nutrient Film Technique (NFT) in the cultivation of soilless lettuce in which plants are grown on peat blocks in trays and supplied with an intermittent flow of nutrient solution, and (ii) to calibrate the fertilization scheme to increase yield performance, while keeping NO3− concentration under control. Two greenhouse trials were performed between autumn 2013 and spring 2014. Results showed that a 30-day cycle is the optimum duration in terms of fresh biomass yield, both for autumn and spring cultivation. Reducing N fertilization in the last cropping days never affected NO3− concentration in leaves during autumn trial, due to unfavourable growing conditions. Conversely, suspension of fertilization 2 days before harvest had a consistent effect during the spring trial, when NO3− concentration in leaves was highly reduced (from 20 to 36%) without yield penalties. Thus, suspending fertilization 2–4 days before harvesting in intermittent NFT may reduce, on average, NO3− accumulation by 29–58% and the fertilization rate by 7–16%, respectively. Yet, growing conditions are crucial to make this system effective.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Reducing Nitrate Accumulation and Fertilizer Use in Lettuce with Modified Intermittent Nutrient Film Technique (NFT) System

et al. 2020

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“…It consists of fruits or vegetables which have undergone minimal processing after harvest (e.g., trimming, washing, decontaminating, packaging), in order to provide ready-to-eat products maintaining their fresh state. The main issue, being the processing made before passage to the distribution chain, is the higher perishability compared to non-fresh-cut products [192]. The leafy vegetables most commonly used for fresh-cut production are spinach (Spinacia oleracea L.), kale (Brassica oleracea L. var.…”

Section: Leafy Vegetablesmentioning

confidence: 99%

“…In the last decade, breeding for fresh vegetables was mostly based on improving yields and postprocessing performance in terms of shelf life, leaving other aspects to lower priority, such as biotic and abiotic resistance. Moreover, the attention was focused mainly on tolerance to high plant density and hypoxia, post-cutting recovery ability, low core length, solid midrib and good organoleptic and nutritive profiles [192,196,197]. To select cultivars with less browning susceptibility after cutting, the use of browning activity-related enzymes and volatile molecules responsible for off-odors as metabolic markers have been proposed [196].…”

Section: Leafy Vegetablesmentioning

confidence: 99%

The New Green Challenge in Urban Planning: The Right Genetics in the Right Place

et al. 2022

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The creation of green areas within urban centers was born as a response to profoundly different problems, such as the demographic increase and the progressive urbanization of landscapes. Moreover, up to date, the genetics of plants has not been considered for urban contexts. The purpose of this review is to discuss the state of the art and the advantages in planning genetic improvement for plants for urban destinations, also providing technical information, that may contribute in a concrete way. Firstly, recent genomic sources and their potential contribution to breeding programs are discussed. Then, dividing the urban scenarios into four macro areas (i.e., urban/metropolitan parks, urban gardens, road verges and roofs/terraces/balconies), we described the role of genetics in the adaptability and sustainability of plants in these different contexts. In addition, we analyzed the genetic traits plants need to provide services for a city environment and population (e.g., pollution reduction, biodiversity conservation, soil stability, and food production).

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“…Baby leaf lettuce is characterized by a short cycle and there is a considerable interest in promoting its production and quality. It is harvested at an early vegetative phase when seedlings have reached the stage of the first four-six true leaves [45]. The content of vitamins, minerals, and other bioactive compounds may be significantly greater in baby leaf lettuce than in leaves when mature [33,46,47].…”

Section: Introductionmentioning

confidence: 99%

Effect of Compost from Cardoon Biomass, as Partial Replacement of Peat, on the Production and Quality of Baby Leaf Lettuce

Sicignano,

del Piano,

Morra

et al. 2024

Applied Sciences

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The use of peat, the standard substrate used for soilless cultivation of horticultural crops, is becoming of increasing concern as peat is a non-renewable resource and its extraction can degrade wetland ecosystems, creating a strong environmental impact. For this reason, the search for organic materials that can totally or partially replace peat has become increasingly important. In this research, three types of composts (C1, C2, C3), derived from cardoon biomass mixed in different volumes with woody and/or fruit wastes, were utilized as the constituents of growing media, at two dilution rates with peat (60:40 and 30:70 v:v), to assess their effect on the growth and quality of baby leaf lettuce in a greenhouse trial. The two cultivars Imperiale and Verde d’Inverno, belonging to the butterhead and romaine lettuce types, respectively, were employed. Plant performance and yield were unaffected or were positively affected by compost-containing growing medium compared to the control. The cultivars responded differently to the growing medium; the Imperiale showed the highest yield with C1 compost at a 60% rate while the Verde d’Inverno with the C2 was at 30%. The total chlorophyll, carotenoids, and ascorbic acid were found higher in the Verde d’Inverno than in the Imperiale variety while the total polyphenols, flavonoids, and antioxidant activity were lower. Also, the content of chlorophylls as well as of antioxidant compounds and antioxidant activity were differently affected by the growing medium, depending on the lettuce cultivar. The results obtained indicate that cultivated cardoon waste-based compost is a promising constituent of the growing media for baby leaf production. The specific varietal response observed should be considered to optimize both yield and product quality.

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Fresh-Cut Produce Quality

Cited by 11 publications

References 151 publications

Reducing Nitrate Accumulation and Fertilizer Use in Lettuce with Modified Intermittent Nutrient Film Technique (NFT) System

Reducing Nitrate Accumulation and Fertilizer Use in Lettuce with Modified Intermittent Nutrient Film Technique (NFT) System

The New Green Challenge in Urban Planning: The Right Genetics in the Right Place

Effect of Compost from Cardoon Biomass, as Partial Replacement of Peat, on the Production and Quality of Baby Leaf Lettuce

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