茶叶鲜味流失， 原来跟这种成分 有关！_南方+_ 南方plus 照亮团队解开了 其中的奥秘，研 究成果发表在国 际植物学期刊 《植物细胞》 上。 1%至2%，因此 茶叶滋味鲜爽， 明前茶为何滋味 特别鲜？茶叶鲜 味为何会流失？ 近日，安徽农业 大学茶树种质创 新与资源利用全 国重点实验室张 该研究发现，茶 叶中含有一种特 有的"鲜味精 灵"茶氨酸，具 有类似味精的鲜 味，同时能够平 衡茶叶中儿茶素 和咖啡因的苦涩 味。茶氨酸是茶 叶中含量最为丰 富的游离氨基 酸，在早春茶 中，其含量占茶 叶干重的比例达 就像"快递员" ， 这也直接造就了 明前茶动辄上千 元的"身价"。随 着清明节后气温 升高，茶氨酸含 量如"过山车"般 骤降，甚至会降 低一半以上，茶 氨酸的流失导致 晚茶口感大打折 扣。 张照亮团队在这 一研究中首次发 现茶氨酸消失的 全过程，其中线 粒体载体蛋白 CsTHS1和茶氨 酸水解酶 CsGGT2发挥着 关键作用：茶树 细胞线粒体膜上 的CsTHS1蛋白 版权声明：未经 许可禁止以任何 形式转载 编辑 伍咏言 把细胞质中的茶 氨酸送进细胞 的"能量工厂"线 粒体；CsGGT2 酶扮演着茶氨 酸"分 ...

张照亮教授团队在这一研究中首次发现茶氨酸消失的全过程，其中线粒体载体蛋白CsTHS1和茶氨酸水 解酶CsGGT2发挥着关键作用：茶树细胞线粒体膜上CsTHS1蛋白就像"快递员"，把细胞质中的茶氨酸送 进细胞的"能量工厂"线粒体。在这里，CsGGT2酶扮演着茶氨酸"分解师"的角色，将茶氨酸降解掉，导 致茶氨酸含量降低。CsTHS1和CsGGT2的作用与环境温度高低有着直接关系，随着清明节后温度的升 高，CsTHS1和CsGGT2的量显著增多，加快茶氨酸的分解。 张照亮认为，这项研究不仅揭开茶树茶氨酸代谢的神秘面纱，更为其他作物的风味改良提供新思 路，"可以通过基因编辑技术进行精准育种，研发保持茶氨酸含量的专用肥料或遮光技术实现智慧栽 培，进而提升春茶品质"。 新华社合肥5月9日电（记者徐海涛、戴威）爱喝茶的人都知道，清明节前的绿茶，带着一股令人陶醉的 鲜爽，但到了晚春，这种鲜爽味就像被施了魔法般迅速消失。记者9日从安徽农业大学获悉，该校茶树 种质创新与资源利用全国重点实验室张照亮教授团队基于长期研究，近期解开了这个困扰茶业界的谜 题，研究成果发表在国际知名植物学期刊《植物细胞》上。 明前茶为何滋味特别鲜？张照亮 ...

Group 1: Xylitol Market Overview - Xylitol is a natural sweetener found in vegetables and fruits, primarily extracted from corn cobs and sugarcane bagasse [2] - The global xylitol market reached a size of $1.2 billion in 2022 and is expected to exceed $1.8 billion by 2025, with a compound annual growth rate (CAGR) of 10.2% [2] - The Asia-Pacific region, particularly China and India, is the fastest-growing market for xylitol, accounting for over 50% of the global market share [2] Group 2: Industry Growth Drivers - The xylitol industry is expected to maintain stable growth due to the increasing health-conscious consumer trends and rising demand in emerging markets [2] - The food industry will remain the largest application area for xylitol in the coming years [2] - Advances in production technology, such as gene editing, are anticipated to enhance xylitol yield and purity [2] Group 3: Market Dynamics - The xylitol industry is likely to experience a new wave of consolidation and mergers due to intensified market competition [2] - Leading companies will enhance their market competitiveness through technological collaboration and resource integration [2]

Group 1: Company Performance Overview - The company achieved an annual revenue of 85.66 billion CNY, with a net profit attributable to shareholders of 5.4 billion CNY, driven by a robust domestic business that generated 54 billion CNY in revenue [3][4] - Domestic rice revenue grew by 13% on top of a 36% increase in 2023, surpassing 20 billion CNY, while corn revenue exceeded 21 billion CNY despite international market challenges [3][4] - The company maintained a stable market share of approximately 20% in Brazil, with sales remaining flat year-on-year despite adverse conditions [3][4] Group 2: Strategic Focus and Initiatives - The company is focusing on a "2+2" crop strategy, prioritizing corn and sorghum while also expanding into soybeans and rice [5][6] - Aiming to enhance profitability, the company plans to leverage its operational management capabilities in Brazil to meet high customer service and product quality demands [5][6] - The company is optimizing its research and product strategies to develop globally competitive products while reducing costs and improving efficiency [5][6] Group 3: Market Trends and Future Outlook - The Brazilian corn market is expected to see significant changes due to the government's new biofuel policy, which will increase ethanol production and subsequently corn demand [7][8] - The company anticipates a slight increase in corn prices by the end of the year, with a clear and sustainable growth trend in the industry [7][8] - The company is positioned to capitalize on market opportunities by deepening its core crop strategy of "corn + sorghum" to enhance market share and profitability [7][8] Group 4: Financial Management and Cost Control - The company has implemented financial strategies to manage high interest rates in Brazil, securing loans at a significantly lower rate of 2.9% compared to local rates exceeding 16% [9][10] - Management expenses have decreased by 22.9 million CNY year-on-year, reflecting the company's commitment to cost control and efficiency [9][10] - The company is adopting hedging tools to mitigate exchange rate risks associated with cross-border loans, ensuring stability in profit margins [9][10] Group 5: Research and Development Focus - The company is prioritizing the development of drought-resistant and high-yield corn varieties, with a focus on enhancing traits such as resistance to pests and diseases [16] - The integration of gene editing technology is expected to significantly shorten breeding cycles from 7-8 years to 5-6 years, facilitating the introduction of competitive varieties [16] - The company plans to expand its market presence in northern regions by launching early-maturing corn varieties and optimizing product structures [14][15]

于全球率先实现了大片段DNA精准插入技术。 本文为IPO早知道原创 作者｜C叔 微信公众号｜ipozaozhidao 据IPO早知道消息，近日，苏州齐禾生科生物科技有限公司（下称"齐禾生科"）完成超2亿元人民币 A轮融资。本次融资由知名基金和老股东共同投资，凯乘资本将继续助力后续A+轮融资。所筹资金将 主要用于公司基因编辑技术的深度研发、基因编辑产品管线的优化与拓展、及商业化平台落地，进一 步提升公司在生物技术产业领域的核心竞争力与市场影响力。 齐禾生科创立于2021年，专注于开发自主可控新型基因编辑技术、创制卓越生物性状和产品。成立 后，公司在基因编辑新工具挖掘、自主知识产权基因编辑工具优化、安全高效递送系统开发和突破性 种质资源创制等多方面均取得显著进展，构建了以SEEDIT™平台为核心的全链条技术平台，商业化 进程位居行业前沿，获2张安全证书，且成为首个获美国USDA豁免的中国企业。 齐禾生科以国家战略需求为导向，目前已经建立起了全球领先的独立自主可控的基因编辑技术体系。 在核酸酶、碱基编辑和引导编辑的基础上，公司在全球率先实现了大片段DNA精准插入技术，为基 于基因堆叠的生物育种和植物合成生物制造产业 ...