斯巴达克斯第三季

科学家把废弃塑料瓶做成能吃的饼干，还有香草味_我的网站

方谬神探

A | 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。 At least 189 decomposing bodies have been removed from a Colorado funeral home, much higher than initial reports suggested when the story surfaced earlier this month, according to the Colorado Bureau of Investigation.The Return to Nature Funeral Home based in Colorado Springs, Colorado, offers environmentally friendly burials but came under investigation after more than 115 human remains were found being improperly stored on the property, according to a statement from the Fremont County Sheriff’s Office from earlier this month.Responding to a suspicious incident, authorities found around 115 decomposing bodies stored inside a space of about 2,500 square feet. The bodies were in such bad condition that they will need to be identified through DNA, officials said.However, a statement issued on Tuesday by the Colorado Bureau of Investigation on behalf of Fremont County Sheriff Allen Cooper and Fremont County Coroner Randy Keller confirmed the body count to be much higher than originally thought.“On October 13, 2023, all decedents were removed from the Return to Nature Funeral Home in Penrose. The effort was coordinated by the Fremont County Coroner’s Office with support from several entities,” the CBI said. “Teams removed at least 189 individuals and transported them to the El Paso County Coroner's Office. The total number of decedents could change as the identification and investigative processes continue.”Families will be notified once bodies can be identified but the DNA testing could take months, according to local officials."Without providing too much detail to avoid further victimizing these families, the area of the funeral home where the bodies were improperly stored was horrific," Cooper said earlier this month.The scene was so bad when authorities first arrived that that a paramedic who responded developed a rash and had to be medically evaluated, Cooper said.“We are conducting extensive coordination efforts as we focus on the identification of the decedents and provide notifications to ensure the families are given accurate information to prevent further victimization as they continue to grieve their loved ones,” said Fremont County Coroner Randy Keller.Authorities did not disclose what the funeral home was doing with the human remains but did confirm that they are working with the Fremont County Coroners' Office, the Colorado Bureau of Investigation, the Colorado Department of Regulatory Agencies, the Colorado Department of Public Health and the FBI on the case."Green Burial is a natural way of caring for your loved one with minimal environmental impact. Green Burial aids in the conservation of natural resources, reduction of carbon emissions and the preservation of habitat, WITHOUT the use of harsh embalming chemicals, metallic, plastic or unnatural items," the website for the funeral home says. "You can still view your loved one who is NOT embalmed. Embalming is NOT a law. In the state of Colorado within 24 hours the body must be either embalmed or placed in a regulated temperature controlled environment, meaning under refrigeration, dry ice, etc."Officials said they are now beginning the second phase of their investigation on Tuesday.“The second phase of this comprehensive process includes confirming identification and completing family notifications,” the CBI said. “Family notifications will be conducted by a team led by the Fremont County Coroner’s Office, victim advocates and others and this is expected to begin in the next several days.”There is currently no timeline for completion of the investigation.。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。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。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。

B | 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。

C | 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。