George Manganaris

George Manganaris
Cyprus University of Technology · Department of Agricultural Sciences, Biotechnology and Food Science

Director of Pomology & Postharvest Group at Cyprus University of Technology

About

127
Publications
117,673
Reads
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Introduction
George Manganaris is Leader of Fruit Sciences & Postharvest Group (www.fruitsciences.eu) at Cyprus University of Technology, Department of Agricultural Sciences, Biotechnology & Food Science. His scientific interests includes the quality evaluation of fleshy fruits with the use of physiological, biochemical and molecular approaches, the elucidation of fruit ripening syndrome with emphasis in the development of physiological disorders and overall the postharvest maintenance of fresh produce.
Additional affiliations
March 2018 - March 2020
Cyprus University of Technology
Position
  • Professor (Associate)
Description
  • Founder and Director of the CUT Fruit Sciences & Postharvest Group (www.fruitsciences.eu). Teaching assignments involves the following courses:Pomology (Arboriculture), Postharvest Physiology & Technology, Viticulture,Plant Production
March 2018 - present
Cyprus University of Technology
Position
  • Professor (Associate)
Description
  • Founder and Director of the CUT Fruit Pomology & Postharvest Group (www.fruitsciences.eu). Teaching assignments: Pomology (Arboriculture) Postharvest Physiology & Technology, Viticulture, Principles of Plant Production
January 2013 - February 2018
Cyprus University of Technology
Position
  • Professor (Assistant)
Education
June 2001 - June 2004
Aristotle University of Thessaloniki, Faculty of Agriculture
Field of study
  • Pomology/Postharvest physiology
October 1998 - June 2001
Aristotle University of Thessaloniki, Faculty of Agriculture
Field of study
  • Genetic Improvement and Plant Physiology
September 1993 - June 1998
Aristotle University of Thessaloniki, Faculty of Agriculture
Field of study
  • Plant Sciences/Horticulture

Publications

Publications (127)
Article
Full-text available
Raspberry (Rubus idaeus), blackberry (Rubus fructicosus), raspberry · blackberry hybrids, red currant (Ribes sativum), gooseberry (Ribes glossularia) and Cornelian cherry (Cormus mas) cultivars and native populations of varied pigmentation, originally from the Mediterranean area of Northern Greece, were assayed for antioxidant activity (determined...
Article
Full-text available
Small berry fruits are consumed due to their attractive colour, special taste and are considered as one of the richest sources of natural antioxidants. Their consumption has been linked to the prevention of chronic and degenerative diseases. The term 'berry fruits' commonly encompass the so-called 'soft fruits', primarily strawberry, currants, goos...
Article
Full-text available
Background Carotenoids are the main colouring substances found in orange-fleshed loquat fruits. The aim of this study was to unravel the carotenoid biosynthetic pathway of loquat fruit (cv. ‘Obusa’) in peel and flesh tissue during distinct on-tree developmental stages through a targeted analytical and molecular approach. Results Substantial change...
Article
Peach (Prunus persica) fruit is widely consumed, both as fresh or as processed (mostly by canning) product. Despite its economic importance, a limited number of studies have dealt with quality assessment of clingstone peach cultivars after thermal processing. Thus, the aim of the current study was to evaluate the effect of canning process on compos...
Article
Considering the limited areas suitable for peach cultivation, the short life cycle of the orchards, as well as aspects regarding appropriate rootstock availability and soil properties due to replant conditions, the sustainable intensification became increasingly necessary on peach production systems. Based on the local environment and labor availab...
Article
Peach is the most important temperate fruit crop worldwide in terms of production after apple. However, a descending trend has been registered over the recent years in several key producing peach countries, mainly due to the increased labor cost and the reduced revenue for the farmer. The present perspective review aims to shed light on the current...
Article
Full-text available
Peach (Prunus persica (L.) Batsch) is widely consumed both fresh and processed. Scarce information exists regarding the fate of phytochemicals after the peach canning process. The aim of the current study was to evaluate the compositional variability and impact of processing on the bioactive compounds profile of eight non-melting peach cultivars, b...
Article
Full-text available
Carotenoids are isoprenoids widely distributed in foods that have been always part of the diet of humans. Unlike the other so-called food bioactives, some carotenoids can be converted into retinoids exhibiting vitamin A activity, which is essential for humans. Furthermore, they are much more versatile as they are relevant in foods not only as sourc...
Chapter
Full-text available
The dietary constituents obtained from fruits vegetables include water, fiber, proteins (legumes), sometimes fats (olive, avocado, and nuts), minerals, and digestible carbohydrates. Starch-based staples, such as potato, cassava, corn, banana, and plantain, provide a major energy source in several regions, being particularly important dietary source...
Article
The effect of preharvest foliar spray applications at fruit colour breaker stage with acetylsalicylic acid (synthetic salicylate), spermidine (polyamine), their combination and a commercial calcium supplement on loquat (Eriobotrya japonica Lindl cv. ‘Karantoki’) fruit at successive harvests and subsequently during maintenance at room temperature (s...
Article
Full-text available
Loquat (Eriobotrya japonica Lindl) tree has a unique annual cycle that allows it to satisfactorily adapt in the Mediterranean basin but also in other subtropical climates. Over the recent years, the commercial production of loquat fruit has received increased interest and it has risen to a niche product that is greatly appreciated by the consumers....
Article
Full-text available
The cover image is based on the Research Article Elaboration of novel and comprehensive protocols toward determination of textural properties and other sensorial attributes of canning peach fruit, by Marina Christofi et al., https://doi.org/10.1111/jtxs.12577.
Article
Full-text available
Fruits and vegetables contain vitamins, dietary fibers and phytochemicals, as well as other phytonutrients, which promote human health. Specifically, vitamins are major bioactive compounds, divided in water-soluble (vitamins B and C) and lipid-soluble (vitamins A, E and K) ones, having strong antioxidant potential and limiting several diseases incl...
Article
Full-text available
Peach (Prunus persica) products are destined for fresh consumption or are being consumed after processing in various forms. Despite its huge economic importance, no standardized protocols to define sensorial attributes and mechanical properties of canned peaches exist. Thus, the aim of the current study was dual and included the setting up of a lis...
Article
Loquat marketability is affected by purple spot (PS), a preharvest physiological disorder, evident as skin discoloration with depressed surface. The intensity and severity of PS in three loquat cultivars ('Morphitiki', 'Karantoki' and 'Obusa') was phenotypically monitored during successive on-tree fruit developmental stages. At harvest. 'Obusa' fru...
Article
Full-text available
Fruit and vegetables are considered to be among the most important sources of bioactive compounds with proven beneficial effect on human diet. Tomato has been evolved as a model crop to study both fruit ripening pattern as well as for understanding how different environmental and agricultural factors can enhance the accumulation of bioactive compou...
Article
Full-text available
The extension of commercial life and the reduction of postharvest losses of perishable fruits is mainly based on storage at low temperatures alone or in combination with modified atmospheres (MAs) and controlled atmospheres (CAs), directed primarily at reducing their overall metabolism thus delaying ripening and senescence. Fruits react to postharv...
Chapter
Sweet cherries are a high value, short storage life fruit. Value in the market place is dependent on quality parameters including firmness, soluble solids content, red fruit color, stem green color and freedom from defects (pitting, pebbling, decay). Quality at the market place can be assured if proper at harvest temperature management and good con...
Chapter
Physiological disorders due to extended low-temperature storage, evident as chilling injury (CI) symptoms, are among the main deterioration problems of stone fruits. Storage temperature and duration trigger the onset and intensity of these genetically controlled disorders. Besides CI symptoms, fast ripening and development of postharvest diseases l...
Article
Due to scalar on-tree ripening, harvest of loquat fruit is successive, spanning for several weeks, depending on the cultivar considered and the cultivation practices applied. Notably, early harvested fruit receive appreciably high prices on the market. The aim of the current study was to dissect the effect of harvesting day on mechanical properties...
Article
Full-text available
Concorrenza greca in aumento con le migliorate tecniche post-raccolta L a coltivazione dell'actinidia in Grecia attraversa una fase di cre-scita esponenziale in termini sia di area coltivata, sia dei volumi di pro-duzione, posizionandosi al quinto po-2017 circa il 45% della produzione di kiwi era concentrata nella Macedonia centrale (Province di Pi...
Article
Full-text available
Loquat (Eriobotrya japonica (Thunb.) Lindl.) is the only fruit tree crop in the Mediterranean zone with ripening period during early spring, particularly when specific preharvest practices are applied such as cultivation under plastic cover. Loquat fruit is characterised by its refreshing taste and it is highly appreciated by consumers. However, lo...
Chapter
Full-text available
Chilling injury (CI) limits shelf life, long-distance distribution and off-season commercialization of peach and nectarine fruits. It has been described using different and sometimes diffuse terms (mealy, woolly, leathery), which mostly refer to fruits which, while maintaining normal water content, lack juiciness and have a highly unappealing textu...
Article
- Vitamin E is a general term used to describe a group of eight lipophilic compounds known as tocochromanols. These vitamin E variants are chemically categorized into two classes formed by α-, β-, γ-, and δ- tocopherols and tocotrienols isoforms, respectively. - The present study describes the concurrent regulation of genes and metabolites orchestr...
Article
Full-text available
BACKGROUND The effect of leaf removal on postharvest performance of dehydrated grapes has been poorly analyzed. The aim of this study was to evaluate the effect of leaf removal at veraison stage on the metabolites of fresh and dehydrated grapes of two indigenous Cypriot cultivars (‘Mavro’ and ‘Xynisteri’) that are destined for the production of ‘Co...
Article
Full-text available
It has recently been described that the Japanese plum “Santa Rosa” bud sport series contains variations in ripening pattern: climacteric, suppressed-climacteric and non-climacteric types. This provides an interesting model to study the role of ethylene and other key mechanisms governing fruit ripening, softening and senescence. The aim of the curre...
Data
(A) A neighbor joining phylogenetic tree from SNPs among the six cultivars. (B) A PCoA plot depicting the dimensional relationships among the six cultivars using SNPs.
Data
Total number of variant sites identified after filtering for depth, allele frequency, mapping quality, and coding region.
Data
This table shows the 260 SNP/INDELS differences between Sweet Mariam and the suppressed cultivars, which are July Santa Rosa, Late Santa Rosa, Casselman, and Roysum after filtering and based of gene function of the SNP.
Data
Summary of the unique variants effects (SNP/INDEL) for each of the plum cultivars.
Data
Discriminatory SNP variants among the 6 plum cultivars where at least one cultivar differs.
Data
Discriminatory INDEL variants among the 6 plum cultivars where at least one cultivar differs.
Data
This table shows the 281 SNP/INDELS differences with their respectives chromosome location between Santa Rosa and the rest of plum cultivars after filtering and based of gene function of the SNP.
Data
This table shows the 204 SNP/INDELS diferences between climateric (July Santa Rosa, Santa Rosa and Late Santa Rosa) vs. the non-climateric Sweet Mariam after filtering and based of gene function of the SNP.
Data
Summary of the copy number variations when comparing (a) Santa Rosa vs. Sweet Mariam, (b) Santa Rosa vs. Late Santa Rosa, Casselman and Roysum and (c) Sweet Mariam vs. Late Santa Rosa, Casselman, and Roysum.
Data
This table shows the 108 SNP/INDELS differences between Santa Rosa and Sweet Mariam after filtering and based of gene function of the SNP.
Article
Full-text available
Horticultural commodities (fruit and vegetables) are the major dietary source of several bioactive compounds of high nutraceutical value for humans, including polyphenols, carotenoids and vitamins. The aim of the current review was dual. Firstly, towards the eventual enhancement of horticultural crops with bio-functional compounds, the natural gene...
Article
The objective of this study was to compare the effect of traditional sun-drying method (TM) with four alternative dehydration methods [(a) multiple horizontal wires (MHW), (b) multiple vertical pallets (MVP), (c) low greenhouse (LGH) and (d) hot-air dryer treatment (HAD)] on phenolic composition, oenological parameters, aroma potential and browning...
Article
The aim of this study was to understand the antioxidant metabolic changes of peach (cvs. 'Royal Glory', 'Red Haven' and 'Sun Cloud') and nectarine fruits (cv. 'Big Top') exposed to different combinations of low-temperature storage (0, 2, 4 weeks storage at 0 °C, 90% R.H.) and additional ripening at room temperature (1, 3 and 5 d, shelf life, 20 °C)...
Article
Grapes' sun-dried process is one of the most critical steps in the production of ‘Commandaria’, a dessert wine product that is exclusively produced in Cyprus and derived from must obtained from two indigenous grape cultivars, namely ‘Mavro’ and ‘Xynisteri’. Despite its significant economic importance, no data regarding the primary and secondary met...
Article
Full-text available
The term vitamin E refers to a group of eight lipophilic compounds known as tocochromanols. The tocochromanols are divided into two groups, that is, tocopherols and tocotrienols, with four forms each, namely α-, β-, γ-, and δ-. In order to explore the temporal biosynthesis of tocochromanols in olive (Olea europaea cv. ‘Koroneiki’) fruit during on-t...
Article
Full-text available
Sweet cherry fruits (Prunus avium cvs. ‘Canada Giant’, ‘Ferrovia’) were harvested at commercial maturity stage and analyzed at harvest and after maintenance at room temperature (storage at ∼20°C, shelf life) for 1, 2, 4, 6, and 8 days, respectively. Fruit were initially analyzed for respiration rate, qualitative attributes and textural properties:...
Article
Full-text available
The aim of this work was to generate a high resolution temporal mapping of the biosynthetic pathway of vitamin E in olive fruit (Olea europaea cv. ‘Koroneiki’) during seventeen successive on-tree developmental stages. Fruit material was collected from the middle of June until the end of January, corresponding to 6-38 weeks after flowering (WAF). Re...
Article
Full-text available
The improvement of plant growth and productivity under biotic and abiotic stress conditions, as well as the reduction of post-harvest losses, are of paramount significance for meeting the increasing global population demand for food. Hydrogen sulphide (H2S) has recently appeared as a key contributor towards this goal via its bioactive role in the r...
Article
Full-text available
The improvement of plant growth and productivity under biotic and abiotic stress conditions, as well as the reduction of post-harvest losses, are of paramount significance to meet the increasing demand for food by a growing World population. Hydrogen sulphide (H2S) has recently appeared as a key contributor towards this goal through its bioactive r...
Article
Full-text available
Nitric oxide (NO) and hydrogen peroxide (H2O2) have a pivotal role in plant development and stress responses, thus rendering them as key molecules for priming approaches. In this study, a hydroponic experiment was employed in order to investigate the effects of NO donor, sodium nitroprusside (SNP; 100 μM), or H2O2 (10 mM) root pretreatment in major...
Chapter
Full-text available
Chronic diseases such as heart disease, stroke, cancer and diabetes are a leading cause of mortality worldwide. Excess weight and outright obesity are a growing concern. Prevention of these problems is linked to lifestyle choices. There may be an evolutionary discordance between modern diets, rich in calories from fats and starches and low in fruit...
Article
‘Kathista’ and ‘Lortiko’ are regarded as traditional and highly appreciated apple cultivars in Cyprus, yet their postharvest behaviour and phytochemical content are largely unknown. Such fruits were examined for their qualitative traits, phenolic composition and antioxidant capacity after harvest or short, intermediate or extended cold storage and...
Article
Full-text available
Temperature extremes represent an important limiting factor to plant growth and productivity. The present study evaluated the effect of hydroponic pretreatment of strawberry (Fragaria x ananassa cv. 'Camarosa') roots with an H2S donor, sodium hydrosulfide (NaHS; 100 muM for 48 h), on the response of plants to acute heat shock treatment (42[degree s...
Chapter
Full-text available
This book, divided into four parts, aims to gather comprehensive and concise information on the advances in fruit research. Part one focuses on physiology and metabolism. Part two deals with fruit nutritional quality and part three with signalling and hormonal control of fruit ripening. Part four covers genetic and epigenetic control of fruit ripen...