Effects of controlled atmospheres and low temperature on storability of chestnuts manually and mechanically harvested

Cecchini, Massimo; Contini, Marina; Massantini, Riccardo; Monarca, Danilo; Moscetti, Roberto

doi:10.1016/j.postharvbio.2011.03.001

Cited by 57 publications

(36 citation statements)

References 12 publications

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“…In fact, ST is always a critical condition in the assessment of chestnuts chemical quality (Cecchini et al, 2011). The significant interactions did not allow relevant conclusions in the analysis of Table 1.…”

mentioning

confidence: 91%

Effects of gamma and electron beam irradiations on the triacylglycerol profile of fresh and stored Castanea sativa Miller samples

Barreira

Carocho

Ferreira

et al. 2013

Postharvest Biology and Technology

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The present chestnut (Castanea sativa Miller) commercialization dynamics, including distribution to novel markets, demands suitable conservation technologies. Irradiation has been considered a promising alternative to chemical fumigation (legally forbidden and harmful for human health and environment) or heat treatments (technological difficulties and low efficiency). Following previous studies on the effects of irradiation in different chemical parameters, the present work aims to perform an evaluation of the effects of electron beam and γ-irradiation on the triacylglycerol profiles of fresh and stored chestnuts. An analysis of variance with type III sums of squares was performed using the general linear model procedure. As classification technique, a linear discriminant analysis using the stepwise procedure was also applied. Independently of irradiation type, samples irradiated with higher doses showed higher modifications in triacylglycerol profiles. In fact, samples irradiated with 1 and 3 kGy were clearly separated from the remaining groups in the linear discriminant analysis. The obtained results highlight the potential of triacylglycerol profiles as indicators of chestnuts irradiation. However, irradiation might be recommended as a suitable method for chestnuts preservation.

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mentioning

confidence: 91%

Effects of gamma and electron beam irradiations on the triacylglycerol profile of fresh and stored Castanea sativa Miller samples

Barreira

Carocho

Ferreira

et al. 2013

Postharvest Biology and Technology

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“…The pathway results in phenols' degradation and starts with the conversion of amino acid L-phenylalanine to trans-cinnamic acid by enzyme phenylalanine lyase (PAL, EC. 4.3.1.5) [58,59]. After this step is the conversion of trans-cinnamic acid by PPO to ortho-quinones, which spontaneously polymerize to melanins, which are brown pigments responsible for tissue browning [60,61].…”

Section: Enzymatic Browningmentioning

confidence: 99%

“…The main parameter to evaluate texture change is firmness, which is commonly measured using a texture profile analyzer (TPA) [59,86]. The high temperature and long drying time in AD often result in heat-damage and losses in texture [47].…”

Section: Texturementioning

confidence: 99%

Monitoring and Optimization of the Process of Drying Fruits and Vegetables Using Computer Vision: A Review

et al. 2017

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An overview is given regarding the most recent use of non-destructive techniques during drying used to monitor quality changes in fruits and vegetables. Quality changes were commonly investigated in order to improve the sensory properties (i.e., appearance, texture, flavor and aroma), nutritive values, chemical constituents and mechanical properties of drying products. The application of single-point spectroscopy coupled with drying was discussed by virtue of its potentiality to improve the overall efficiency of the process. With a similar purpose, the implementation of a machine vision (MV) system used to inspect foods during drying was investigated; MV, indeed, can easily monitor physical changes (e.g., color, size, texture and shape) in fruits and vegetables during the drying process. Hyperspectral imaging spectroscopy is a sophisticated technology since it is able to combine the advantages of spectroscopy and machine vision. As a consequence, its application to drying of fruits and vegetables was reviewed. Finally, attention was focused on the implementation of sensors in an on-line process based on the technologies mentioned above. This is a necessary step in order to turn the conventional dryer into a smart dryer, which is a more sustainable way to produce high quality dried fruits and vegetables.

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“…Productivity increases further with the use of self-propelled shakers, which, in addition to the vibrating element, have a reversed-umbrella interceptor. This last solution appears to be the most interesting for the purpose of rational management of almond orchards, because the work chain is limited to two or three working units, reducing the incidence of this cost item to just 20% [8,9].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Almond Harvesting and Hulling Mechanization Process: A Case Study

Pascuzzi

Santoro

2017

Agriculture

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Abstract:The aim of this paper is the analysis of the almond harvesting system with a very high level of mechanization frequently used in Apulia for the almond harvesting and hulling process. Several tests were carried out to assess the technical aspects related to the machinery and to the mechanized harvesting system used itself, highlighting their usefulness, limits, and compatibility within the almond cultivation sector. Almonds were very easily separated from the tree, and this circumstance considerably improved the mechanical harvesting operation efficiency even if the total time was mainly affected by the time required to manoeuvre the machine and by the following manual tree beating. The mechanical pick-up from the ground was not effective, with only 30% of the dropped almond collected, which mainly was caused by both the pick-up reel of the machine being unable to approach the almonds dropped near the base of the trunk and the surface condition of the soil being unsuitably arranged for a mechanized pick-up operation. The work times concerning the hulling and screening processes, carried out at the farm, were heavily affected by several manual operations before, during, and after the executed process; nevertheless, the plant work capability varied from 170 to 200 kg/h with two operators.

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Effects of controlled atmospheres and low temperature on storability of chestnuts manually and mechanically harvested

Cited by 57 publications

References 12 publications

Effects of gamma and electron beam irradiations on the triacylglycerol profile of fresh and stored Castanea sativa Miller samples

Effects of gamma and electron beam irradiations on the triacylglycerol profile of fresh and stored Castanea sativa Miller samples

Monitoring and Optimization of the Process of Drying Fruits and Vegetables Using Computer Vision: A Review

Analysis of the Almond Harvesting and Hulling Mechanization Process: A Case Study

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