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Cryo-attenuated properties of Tilia miqueliana pericarps and seeds
Wu,Yu; Sun,Xiao Rui; Peng,Chen Yin; Shen,Yong Bao; Visscher,Anne M.; Pritchard,Hugh W.; Wang,Ming Zhu; Deng,Zhi Yun
2023
发表期刊FRONTIERS IN PLANT SCIENCE
卷号14页码:1228069
摘要Introduction: Cryo treatment of dry seeds is known to attenuate the structure of fruit and seed coats, but little is known about the microstructural impacts of such treatment. The seeds of Tilia miqueliana are dispersed within a hard pericarp, the manual removal (hulling) of which is time-consuming and inefficient. Rapid hulling technology is urgently needed for sustainable production and convenience of edible nuts. Methods: We explored the mechanistic basis of liquid nitrogen (N)-treatment weakening of the pericarp of T. miqueliana fruits using a range of microscopical, biophysical and chemical approaches. Results: Liquid N treatment (40 s) resulted in lower pericarp contents of cellulose and hemicellulose, and increased amounts of lignin. Profound changes in cell structure and mechanical properties included the emergence of large holes and gaps between the mesocarp and endocarp cells. Also, the toughness of the pericarp decreased, whilst the hardness and brittleness increased, thereby changing the fracture type from ductile to brittle. Liquid N treatment of dry fruits followed by tapping with a hammer, reduced the number of damaged seeds three-fold and pericarp peeling time four-fold compared with manual hulling, whilst seed viability was not negatively affected. Discussion: Comparable findings for the efficient and economical removal of hard covering structures from dispersal units of five more species from three other families following liquid N treatment indicates the potential application of our findings to large-scale production of seeds and seedlings for breeding, forestry and conservation/restoration purposes. Furthermore, it introduces a novel concept for postharvest treatment and pre-treatment of deep processing in nuts.
关键词linden hard pericarp and seeds LN treatment cryo-attenuated properties postharvest and deep processing LOW-TEMPERATURES LIQUID-NITROGEN PRETREATMENT HYDROLYSIS CELLULOSE LIGNIN CRYOPRESERVATION GERMINATION SUGARS
DOI10.3389/fpls.2023.1228069
WOS记录号WOS:001064036500001
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/74986
专题中国科学院昆明植物研究所
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GB/T 7714
Wu,Yu,Sun,Xiao Rui,Peng,Chen Yin,et al. Cryo-attenuated properties of Tilia miqueliana pericarps and seeds[J]. FRONTIERS IN PLANT SCIENCE,2023,14:1228069.
APA Wu,Yu.,Sun,Xiao Rui.,Peng,Chen Yin.,Shen,Yong Bao.,Visscher,Anne M..,...&Deng,Zhi Yun.(2023).Cryo-attenuated properties of Tilia miqueliana pericarps and seeds.FRONTIERS IN PLANT SCIENCE,14,1228069.
MLA Wu,Yu,et al."Cryo-attenuated properties of Tilia miqueliana pericarps and seeds".FRONTIERS IN PLANT SCIENCE 14(2023):1228069.
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