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Me-Hea Park Peerapong Sangwanangkul Dong-Ryeol Baek 《Saudi Journal of Biological Sciences》2018,25(1):57-65
Black tomatoes have a unique color and higher lycopene content than typical red tomatoes. Here, black tomatoes were investigated how maturation stage and storage temperature affected carotenoid and chlorophyll accumulation. Immature fruits were firmer than mature fruits, but failed to develop their distinctive color and contained less lycopene when stored at 8 °C. Hunter a* values of black tomatoes increased with storage temperature and duration; storage of immature fruits at high temperature favored lycopene accumulation. Chlorophyll levels of black tomatoes declined during storage, but differences between mature and immature tomatoes stored at 12 °C were minimal. β-Carotene levels of black tomatoes increased during early storage, but rapidly declined beginning 13 d post-harvest. The highest lycopene and chlorophyll levels were observed in mature black tomatoes stored at 12 °C for 13 d; these conditions also yielded the best quality fruit. Thus, the unique pigmentation properties of black tomatoes can be precisely controlled by standardizing storage conditions. 相似文献
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Rattanaporn Kittipong Tantayotai Prapakorn Phusantisampan Theerawut Pornwongthong Peerapong Sriariyanun Malinee 《Bioprocess and biosystems engineering》2018,41(4):467-477
Bioprocess and Biosystems Engineering - Effective lignocellulosic biomass saccharification is one of the crucial requirements of biofuel production via fermentation process. Organic acid... 相似文献
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Dynamics of vitellogenin mRNA expression during vitellogenesis in the banana shrimp Penaeus (Fenneropenaeus) merguiensis using real-time PCR 总被引:1,自引:0,他引:1
Phiriyangkul P Puengyam P Jakobsen IB Utarabhand P 《Molecular reproduction and development》2007,74(9):1198-1207
An open reading frame (ORF) of vitellogenin (Vg) cDNA was amplified from the ovaries of the banana shrimp, Penaeus merguiensis. An examination of Vg-deduced amino acid sequence revealed the presence of cleavage sites at a consensus motif for subtilisin-like endoproteases prior to the N-terminal sequences of purified vitellin (Vt) subunits. A comparison of the primary structures of Vg molecules in decapod crustacean species revealed the existence of a common characteristic structure, and phylogenetic analysis reflected the current taxonomic classifications of crustaceans. A PCR product of 1.1 kb encoding the 3'-end of Vg cDNA was cloned from the hepatopancreas. Although its sequence was almost identical to that of the same region of the ovarian Vg, with only 18 nucleotide differences, analysis suggests that they have been subjected to natural selection, indicating that there may be two different, tissue-specific Vg genes in P. merguiensis. This is consistent with the different expression patterns of Vg mRNA, as determined by real-time PCR. Vg mRNA levels were maintained at low levels during the previtellogenic stage and they increased as vitellogenesis progressed to reach a peak at the early vitellogenic stage in the ovary or at the vitellogenic stage in the hepatopancreas, and thereafter, levels decreased. Expression of Vg mRNA was much higher in the ovary compared to the hepatopancreas at all stages of ovarian development, implying that the ovary is mainly responsible for Vt synthesis. These indicate that penaeids constitute a unique model for vitellogenesis, showing intraovarian gene expression and synthesis of yolk protein. 相似文献
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