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任发政谈蛋白产业未来攻关重点：最大化保留蛋白质原始结构与活性_我的网站

A |     SAN SALVADOR, El Salvador -- El Salvador sent more than 4,000 security forces into three communities on the outskirts of the capital to root out gang members Wednesday, as President Nayib Bukele prepared to request another extension of emergency powers to combat crime.Bukele announced the pre-dawn operation in a slickly produced video posted to the platform X. Soldiers and police were sent to surround the densely populated communities of Popotlan, Valle Verde and La Campanera outside San Salvador, the president said.“We are not going to stop until we capture the last terrorist that remains,” Bukele wrote, using a phrase that typically refers to members of gangs who have been accused of drug trafficking, protection rackets and extortion. “We won’t allow small remnants to regroup and take away the peace that has cost so much.”Bukele has used emergency powers granted after a surge in gang violence i n March 2022 to wage an all-out offensive against the country’s powerful street gangs. More than 72,000 alleged gang members or affiliates have been jailed. The crackdown has allowed a renewal of everyday life in the public spaces of Salvadoran communities once cowed by the gangs, but critics say the arrests have been made without due process and that thousands of innocents have been swept up in the effort.The emergency powers suspend some constitutional rights, such as being told why you’re being arrested and access to an attorney. The security measures remain highly popular with Salvadorans, but international human rights organizations and some foreign governments are highly critical.Security forces have executed similar operations over the past year and a half. They typically set up checkpoints at the entrances to communities, stopping and questioning drivers and searching their vehicles, while other forces search door to door for gang members.La Campanera has been known as one of the country’s most violent areas. Some 10,000 people live there and for years were controlled by the Barrio 18 gang.In December 2022, more than 10,000 members of the security forces entered La Campanera and other communities of the Soyapango municipality rounding up gang members.。    专题：精准营养产业大会 精准蛋白营养 赋能全生命周期健康 2026年8月21-23日，第二届精准营养产业大会在黑龙江哈尔滨举行，大会主题为“精准蛋白营养，赋能全生命周期健康”。中国工程院院士、中国检验检测学会会长、中国农业大学教授任发政在论坛上表示，蛋白质是生命的基础载体与核心执行者，广泛参与人体结构构建、物质代谢、免疫调节、物质运输等全部生命活动。而其最关键、最容易被忽视的核心特点，就是人体不存在蛋白质长期储备库。

B | 　　“人体每天都在进行大规模的蛋白质裁旧建新代谢过程，每日更新代谢量可达250克至300克，根据体重、代谢速率因人而异。”任发政解释，正因人体无法长期储存蛋白质，日常生命活动所需蛋白必须持续依靠膳食供给，这也直接决定了食物蛋白质的质量、结构与吸收效率，是维系人体生命活动的关键核心。　　任发政进一步结合人体代谢机制，阐释了精准蛋白营养的科学性与必要性。他介绍，人体蛋白质“裁旧建新”的循环过程中，60%至80%的氨基酸可被机体重复利用，但个体差异极大。不同人群的代谢速率、氨基酸重复利用率各不相同，部分人群利用率可达80%，部分仅为60%。“利用率不同，人体所需外源食物蛋白、氨基酸的供给总量和种类就完全不同。

C | ”任发政强调，这一机制充分印证了蛋白质营养的时空性、个体性，也是精准营养、差异化膳食干预的核心生理学依据。　　谈及最新科研突破与产业升级方向，任发政表示，传统研究多聚焦蛋白质的氨基酸组成与消化吸收率，而当下前沿研究证实，蛋白质的功能活性不仅取决于氨基酸构成，更依赖其一级、二级、三级立体结构。最新研究发现，大量功能性蛋白可通过细胞膜内外直接转运吸收，为蛋白营养利用开辟了全新路径。

D | 　　对此，任发政指出，这一突破对食品加工工艺提出了全新要求。行业未来的核心攻关重点，是在食品加工全过程中最大化保留蛋白质原始结构与活性，实现高活性蛋白的高效提取、保留与精准输送，让功能性蛋白充分被人体吸收利用。

E | 在他看来，该方向是营养科学与食品工业融合创新的核心赛道。

F | 　　新浪声明：所有会议实录均为现场速记整理，未经演讲者审阅，新浪网登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。责任编辑：李思阳。

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