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Vessel tests begin along China's major river-to-sea Pinglu Canal_我的网站

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一 | 8 月 25 日消息，在 8 月 23 日至 27 日的美国化学学会 2026 年秋季会议上，美国南伊利诺伊大学科学家公布了一项新成果，他们研发出一种特殊饼干，材料取自你扔掉的塑料饮料瓶。随着全球日益严重的塑料污染和对粮食安全的担忧日益加剧，南伊利诺伊大学卡本代尔分校的一个团队正在测试一种微生物，可以将塑料废弃物转化为人类可食用的食物，这一技术名为 μBites。▲ 图源南伊利诺伊大学卡本代尔分校这项工作属于美国 NASA 主导的一个项目，旨在为资源有限的深空探索环境创造食物。

二 |

Vessels enter a ship lock of the Pinglu Canal in Lingshan county, Qinzhou, South China's Guangxi Zhuang Autonomous Region on August 12, 2026.
Equipped with China's homegrown BeiDou positioning systems, drones and sensors, four vessels began trial runs along China's Pinglu Canal on Wednesday. The canal, which is planned for opening in September, will greatly inject economic vitality to areas along its route and turbocharge China's trade connection with the ASEAN with its cost-saving transportation, a Chinese analyst said.
The vessels conducting trials on Wednesday represent the main types expected to sail on this canal, namely loaded and unloaded 5,000-tonne ships as well as loaded 3,000-tonne and 1,000-tonne vessels, Xinhua News Agency reported.
The trials began when an unloaded 5,000-ton vessel departed from the Xinfu service area along the canal in South China's Guangxi Zhuang Autonomous Region, the Xinhua News Agency reported.
With sensors collect data on their routes, movements, water currents and safe distances between ships, the tests will assess navigation under both normal and adverse conditions and examine whether the canal's waterways, locks, anchorages, service areas and navigation facilities are ready for operation.
Chinese analysts said the tests starting on Wednesday, days after the canal completed its first full-route patrol, indicated that the canal is one step closer to its scheduled opening in September as final preparation work ramp up.
Zheng Ping, chief analyst at industry news portal chineseport.cn, told the Global Times on Wednesday that as a major project in the nation's water network, the opening of the canal later this year will bring sea changes to areas along its route with fresh economic opportunities with its role as a low-cost enabler for domestic and international trade.
"Inland water traffic has great advantage in transportation capacity and costs. While a train can typically carry 20 40-foot container or more, a waterborne vessel can easily carry over 100 such containers. So a five-times capacity is gained here, greatly reducing transportation costs for goods," Zheng said.
For goods that are not time sensitive, or for bulk cargo such as coal, aluminum or fertilizers, waterborne traffic has unparallel advantage, the expert noted.
The 134.2-kilometer-long Pinglu Canal is a key project of the New International Land-Sea Trade Corridor. With total investment exceeding 70 billion yuan ($10.37 billion), the canal begins at the Pingtang River estuary in Hengzhou, administered by Nanning, follows the Qinjiang River into the Beibu Gulf, according to Xinhua News Agency.
It is China's first major river-to-sea canal project planned and coordinated at the national level since 1949 and is designed to accommodate vessels of up to 5,000 tons.
In addition to facilitating transportation, modern canal system will also have the function of water resource diversion, flood control and irrigation, greatly boosting up local economic development, Zheng said.
Lei Xiaohua, deputy director of the Institute of Southeast Asian Studies at the Guangxi Academy of Social Sciences in South China's Guangxi Zhuang Autonomous Region, told the Global Times on Wednesday that the Pinglu Canal will serve as a new engine for the deep integration of industrial chains between China and ASEAN.
"Raw materials from ASEAN can enter China's hinterland via the Beibu Gulf ports at lower costs, while Chinese exports including aluminum products and building materials can reach Southeast Asia more efficiently," Lei said.
Against the backdrop of deep industrial chain integration between China and Vietnam, the canal, which offers a low-cost, high-capacity transport route, is poised to foster new models of cross-border industrial capacity cooperation, said Lei.
When operational in September, the canal will give inland regions in Southwest China a more direct river route to the sea. Cargo that previously had to travel eastward through the Port of Guangzhou will be able to head south directly toward ports in the Beibu Gulf, shortening some inland waterway journeys by about 560 kilometers, according to Xinhua.
The New International Land-Sea Trade Corridor is an international trade and logistics network connecting China's western regions to ASEAN countries and other overseas markets.
The corridor has continued to record strong trade growth. During the first half of 2026, imports and exports transported through the corridor by its participating regions reached 517.23 billion yuan, up 13 percent year-on-year and setting a new record for the same period, per data released by Chongqing municipal government.
The corridor's rail service handled a record 1.425 million 20-foot equivalent units of cargo in 2025, up 47.6 percent year-on-year. As of early June of 2026, its network reached 593 ports in 128 countries and regions.
。最常见的塑料形式之一是聚对苯二甲酸乙二醇酯（PET），这种材料常用于制造塑料瓶。PET 含有大量碳分子，可以重建成类似蛋白质的物质。

三 | 虽然这种重建可以在实验室用化学反应和溶剂完成，但更简单、更环保的解决方案是将工作外包给微生物。从美国化学学会介绍获悉，该团队改造了多种酵母，包括烘焙酵母，将塑料和农业废弃物中的分子转化为蛋白质、维生素和调味料。研究人员将 PET 塑料、废弃的玉米杆和叶子及其他生物质，经过一种称为氧化热液溶解的专有工艺处理。该方法由南伊利诺伊大学卡本代尔分校地质学教授 Ken Anderson 发明，利用高温高压的水和氧气将坚硬物质分解成微生物可接触的碎片。然后，这些碎片被送给特别编程后的酵母，酵母会将它们转化为多种新的食品成分，包括蛋白质、脂肪和酸。最后，研究人员加入纤维、淀粉和甜味剂，并通过 3D 打印机挤出，形成富含蛋白质的饼干 μBites。尽管数据显示 μBites 是安全的，但团队仍在等待机构批准进行味觉测试。目前，这些饼干在香气方面获得了很高的评价，大多数参与者都同意在资源有限的情况下愿意吃。为了让 μBites 成为消费者在较为严峻环境下更容易下咽的选择，该团队创造了能够生产更多食品添加剂的酵母。现在，面包酵母可以利用植物生物质产生香草味，而另一种菌株则能将 PET 中的乙二醇转化为 β-胡萝卜素，身体可以将其转化为维生素 A。未来，该团队希望利用微生物生产 μBites 的主要成分，包括添加的淀粉、纤维和甜味剂，并希望 μBites 能在几年内面向公众开放，既能在地球上使用，也能在更极端的环境中使用，比如潜艇，甚至月球、火星上的殖民地。

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Published on:09:57:48

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