The Experts below are selected from a list of 1212 Experts worldwide ranked by ideXlab platform
Hajer Aloui - One of the best experts on this subject based on the ideXlab platform.
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effect of chitosan based coatings enriched with savory and or tarragon essential oils on postharvest maintenance of kumquat fortunella sp fruit
Food Science and Nutrition, 2019Co-Authors: Seyed Fakhreddin Hosseini, Milad Amraie, Mohammad Hossein Salehi, Maedeh Mohseni, Hajer AlouiAbstract:: The present study assessed the ability of chitosan-based coatings incorporating savory and/or tarragon essential oils (EOs) to preserve the postharvest quality of Kumquats. Changes in weight loss, titratable acidity, total soluble solids, and vitamin C content were determined over 30 days of storage at 7°C. Savory (Satureja hortensias L.) essential oil was characterized by thymol (29.1%), carvacrol (26.6%), and γ-terpinene (24.72%) as major constituents. While, in the tarragon (Artemisia dracunculus L.) essential oil, estragol (81.89%), β-cis-Ocimene (4.62%), and β-trans-Ocimene (3.44%) were the main ones. The CH-EOs coatings were effective in reducing weight loss of Kumquats fruits during storage. Moreover, the tested composite coatings showed positive effects in maintaining vitamin C and fruits treated with CH-oil coatings retained good sensory acceptability. The obtained results demonstrate the potential of the combined application of chitosan and savory and/or tarragon EOs as a promising postharvest treatment for maintaining the postharvest quality of Kumquats fruits.
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Effect of chitosan-based coatings enriched with savory and/or tarragon essential oils on postharvest maintenance of kumquat (Fortunella sp.) fruit.
Food Science and Nutrition, 2018Co-Authors: Seyed Fakhreddin Hosseini, Milad Amraie, Mohammad Hossein Salehi, Maedeh Mohseni, Hajer AlouiAbstract:: The present study assessed the ability of chitosan-based coatings incorporating savory and/or tarragon essential oils (EOs) to preserve the postharvest quality of Kumquats. Changes in weight loss, titratable acidity, total soluble solids, and vitamin C content were determined over 30 days of storage at 7°C. Savory (Satureja hortensias L.) essential oil was characterized by thymol (29.1%), carvacrol (26.6%), and γ-terpinene (24.72%) as major constituents. While, in the tarragon (Artemisia dracunculus L.) essential oil, estragol (81.89%), β-cis-Ocimene (4.62%), and β-trans-Ocimene (3.44%) were the main ones. The CH-EOs coatings were effective in reducing weight loss of Kumquats fruits during storage. Moreover, the tested composite coatings showed positive effects in maintaining vitamin C and fruits treated with CH-oil coatings retained good sensory acceptability. The obtained results demonstrate the potential of the combined application of chitosan and savory and/or tarragon EOs as a promising postharvest treatment for maintaining the postharvest quality of Kumquats fruits.
Takayuki Shibamoto - One of the best experts on this subject based on the ideXlab platform.
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identification of volatile compounds isolated from round kumquat fortunella japonica swingle
Journal of Agricultural and Food Chemistry, 1994Co-Authors: Katumi Umano, Yukio Hagi, Tomoko Tamura, Akihiro Shoji, Takayuki ShibamotoAbstract:Volatile constitutents of round kumquat fruit were isolated by steam distillation and simultaneous purging/extraction (SPE) methods. The isolated volatiles were identified by gas chromatography and gas chromatography/mass spectrometry. Steam distillation led to the identification of 84 compounds, and 35 compounds were identified following SPE. Among a total of 91 constituents identified, 47 were identified for the first time in kumquat fruit. d-Limonene was the most abundant compound, comprising 87% of the sample from steam distillation and 97% of the sample from SPE. In addition to d-limonene, linalool, myrcene, and geranyl acetate were found in the sample from steam distillation as major constituents; myrcene, α-pinene, and β-phellandrene were identified in the sample from SPE as major components
Jorge A. Pino - One of the best experts on this subject based on the ideXlab platform.
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Volatile Compounds of Round Kumquat (Fortunella japonica Swingle) Peel Oil From Colombia
Journal of Essential Oil Research, 2009Co-Authors: Clara E. Quijano, Jorge A. PinoAbstract:Volatile compounds of Colombian round kumquat (Fortunella japonica Swingle) peel oil were isolated by hydrodistillation and analyzed by GC-FID and GC/MS, which led to the identification of 106 compounds, of which 46 were identified for the first time in round kumquat. Limonene was the most abundant compound, comprising 76.7% of peel oil. In addition to limonene, myrcene, germacrene D and linalool and were found as major constituents.
Giorgio A Ascoli - One of the best experts on this subject based on the ideXlab platform.
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on synaptic circuits memory and Kumquats
The New England Journal of Medicine, 2015Co-Authors: Giorgio A AscoliAbstract:A study of the mouse brain with the use of electron microscopy underscores the rich circuitry, the density of neuronal networks, and the specificity of synapse formation.
Hisato Kunitake - One of the best experts on this subject based on the ideXlab platform.
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the confirmation of a ploidy periclinal chimera of the meiwa kumquat fortunella crassifolia swingle induced by colchicine treatment to nucellar embryos and its morphological characteristics
Agronomy, 2019Co-Authors: Tsunaki Nukaya, Miki Sudo, Masaki Yahata, Tomohiro Ohta, Kiichi Yasuda, Akiyoshi Tominaga, Hiroo Mukai, Hisato KunitakeAbstract:A ploidy chimera of the Meiwa kumquat (Fortunella crassifolia Swingle), which had been induced by treating the nucellar embryos with colchicine, and had diploid (2n = 2x = 18) and tetraploid (2n = 4x = 36) cells, was examined for its ploidy level, morphological characteristics, and sizes of its cells in its leaves, flowers, and fruits to reveal the ploidy level of each histogenic layer. Furthermore, the chimera was crossed with the diploid kumquat to evaluate the ploidy level of its reproductive organs. The morphological characteristics and the sizes of the cells in the leaves, flowers, and fruits of the chimera were similar to those of the tetraploid Meiwa kumquat and the ploidy periclinal chimera known as “Yubeni,” with diploids in the histogenic layer I (L1) and tetraploids in the histogenic layer II (L2) and III (L3). However, the epidermis derived from the L1 of the chimera showed the same result as the diploid Meiwa kumquat in all organs and cells. The sexual organs derived from the L2 of the chimera were significantly larger than those of the diploid. Moreover, the ploidy level of the seedlings obtained from the chimera was mostly tetraploid. In the midrib derived from the L3, the chimera displayed the fluorescence intensity of a tetraploid by flow cytometric analysis and had the same size of the cells as the tetraploid and the Yubeni. According to these results, the chimera is thought to be a ploidy periclinal chimera with diploid cells in the outermost layer (L1) and tetraploid cells in the inner layers (L2 and L3) of the shoot apical meristem. The chimera had desirable fruit traits for a kumquat such as a thick pericarp, a high sugar content, and a small number of developed seeds. Furthermore, triploid progenies were obtained from reciprocal crosses between the chimera and diploid kumquat.
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Characteristics in autotetraploid Kumquats (Fortunella spp.) induced by colchicine treatment to nucellar embryos and their utilization for triploid breeding
Scientia Horticulturae, 2019Co-Authors: Tsunaki Nukaya, Miki Sudo, Masaki Yahata, Yoshiyuki Nakajo, Tomohiro Ohta, Kiichi Yasuda, Akiyoshi Tominaga, Hiroo Mukai, Hisato KunitakeAbstract:Abstract Three Fortunella (kumquat) species, the Meiwa kumquat (F. crassifolia Swingle), the Round kumquat [F. japonica (Thunb.) Swingle] and the Changshou kumquat (F. obovata hort. ex Tanaka), showing tetraploid, which had been induced by treating the seeds with colchicine, were examined for origin and horticultural characteristics (e. g. morphology of leaves, flowers, pollen and fruits). Additionally, these tetraploid Kumquats were crossed to produce triploid Kumquats. All of the tetraploids were confirmed to be derived from the nucellar embryo of each original kumquat by examining their chromosomal composition with chromomycin A3 staining. All of the tetraploid Kumquats had the typical morphological characteristics of tetraploid Citrus plants, such as round and thick leaves, and large flowers and pollen grains. On the other hand, the fruits of these tetraploid plants showed desirable traits for Kumquats such as thicker pericarp and higher soluble solids content. Furthermore, when these tetraploids were crossed with some diploid cultivars, triploid progenies were obtained from almost all of the cross combinations.
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Triploid and aneuploid hybrids from diploid-diploid intergeneric crosses between Citrus cultivar 'Kiyomi' tangor and Meiwa kumquat (Fortunella crassifolia swingle) for seedless breeding of Kumquats.
Journal of the Japanese Society for Horticultural Science, 2010Co-Authors: Kiichi Yasuda, Masaki Yahata, Haruki Komatsu, Yoshikazu Kurogi, Hisato KunitakeAbstract:In order to produce new seedless kumquat cultivars, we carried out an intergeneric cross between ‘Kiyomi’ tangor [Citrus unshiu Marcow. × C. sinensis (L.) Osbeck] and Meiwa kumquat (Fortunella crassifolia Swingle), obtaining 2 normal seeds and 7 undeveloped seeds. These seeds were cultivated on Murashige and Tucker medium, and the 2 normal seeds germinated and developed. The results of genome size analysis by flow cytometry revealed that both seedlings were triploids and that the difference in genome size corresponded to more than one chromosome in the 2 seedlings. Chromosome observation confirmed diploid (2n = 2x = 18) in both parents, aneuploid with 28 chromosomes (2n = 28) for one of the seedlings, and triploid (2n = 3x = 27) for the other seedling. Random amplified polymorphic DNA (RAPD) and cleaved amplified polymorphic sequence (CAPS) analyses proved that the seedlings were intergeneric hybrids between ‘Kiyomi’ tangor and Meiwa kumquat, with the maternal organelle genome. These hybrids have the potential to be released as a cultivar after further tree and fruit evaluations, and for use as cross-parents in seedless kumquat breeding.
