日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Innovation

Chinese researchers advance vegetable freshness preservation

Xinhua | Updated: 2025-01-03 21:41
Share
Share - WeChat

BEIJING -- Chinese researchers at the Beijing Academy of Agriculture and Forestry Sciences are on the frontline of postharvest technology, dedicated to preserving the freshness and nutritional value of vegetables while reducing waste. Their work extends beyond shelf life alone, focusing also on maintaining the quality of produce.

One key focus is rapid precooling, a critical step in preserving freshness. This involves lowering the temperatures of freshly harvested vegetables to optimal levels quickly for long-term storage.

"It's like enveloping them in invisible freshness 'armor,'" said Wang Qing, a researcher on the academy's preservation processing team.

However, achieving effective precooling is not without its challenges. Different vegetables and varying levels of ripeness require precise temperature controls.

To address this issue, the researchers created advanced experimental platforms in their laboratory, meticulously recording physiological changes under various conditions to identify the ideal temperature range for each produce type.

Through months of intensive research, they developed innovative techniques such as the integrated control of air cooling speed and humidity, flowing-ice cooling in multilayered containers, and micro-nano ozone sterilization.

"Beyond the technology, we've developed a range of precooling equipment tailored to various vegetables," said Zhao Xiaoyan, an official at the academy's agricultural product processing and nutritional food research institute.

These breakthroughs have not only enhanced the efficiency of precooling processes but also doubled -- or even quadrupled -- the shelf life of vegetables supplied to urban areas.

Discoloration and texture changes also pose significant challenges for vegetable preservation. "Discoloration during storage often results in entire shipments being rejected, causing financial losses for farmers and businesses alike," said Wang Dan, a member of the team who focuses on this issue.

Starting with white radishes, the team recreated and analyzed the vegetable's blue discoloration process in laboratory and real-world conditions.

They identified a plant compound that oxidizes to produce the unwanted blue pigment and discovered that controlling gas composition within packaging could effectively prevent discoloration.

Building on this success, they expanded their research to other vegetables, identifying key enzymes and molecular mechanisms behind color changes and texture deterioration.

In another case, they uncovered the biochemical processes behind the softening of fresh-cut peppers and developed an integrated storage system combining microbial reduction, light exposure regulation and low temperatures. These advances extended the shelf life of fresh-cut peppers by two to three days.

Over the past two years, the team's innovations have been implemented in 75 cities, including Beijing, Shanghai and Shenzhen.

The researchers' customized preservation technologies and equipment have revolutionized the vegetable supply chain, generating additional sales revenue and increasing profits for related industries.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 成人一区二区在线 | 国产色情A片国语露对白 | 9久久9久久精品 | 日本资源站 | 国产乱子伦一区二区三区 | 久久综合久久久久 | 日韩在线电影 | 久久99视频精品 | 色综合天| 污视频网站在线免费看 | 91免费观看视频 | 成人啪啪97丁香 | 99视频网站| 国产内谢 | 成人18免费观看的软件 | 亚洲精品一区二区三区婷婷月色 | 欧美视频网站 | 欧美视频第二页 | 国产精品一区二区久久久久 | 久久久影院| 国产亚洲欧美日本一二三本道 | 久草6| 欧美一级片免费看 | 九九视频只有精品六 | 激情奇米 | 99这里只有精品视频 | 黄色影片在线免费观看 | 天天摸天天揉天天碰天天弄 | av资源中文在线 | 日本人videos18videosrrty | 久久久久女人精品毛片 | 另类五月天| 亚洲午夜在线观看 | 精品视频一区二区三区免费 | 高清国产一区二区三区四区五区 | 男生日女生免费视频 | 色婷婷国产精品欧美毛片 | 久久视频在线视频 | 99热在线播放| 在线观看中文字幕 | 久久久国产精品 |