干鱼在非洲提供了广泛的关键营养素获取机会
James P W Robinson1, Lydia O'Meara2,3, Kathryn J Fiorella3
1Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom.
概括
干鱼是六个非洲国家超过1.44亿人必需营养素的重要,负担得起的来源. 这些营养丰富的水生食物在粮食安全和营养方面发挥着至关重要的作用,特别是在弱势家庭中.
科学领域:
- 食品科学 食品科学 食品科学
- 营养科学 营养科学
- 渔业 科学 渔业 科学
背景情况:
- 水产食品,特别是干鱼,对于热带地区的粮食安全和营养至关重要.
- 由于数据稀缺,干鱼系统经常被忽视,这阻碍了对它们的饮食贡献的理解.
- 关于非洲饮食中干鱼的营养影响和消费模式的数据有限.
研究的目的:
- 评估干鱼对东非和西非饮食的营养贡献.
- 了解各种家庭干鱼消费的流行情况和模式.
- 评估干鱼中的营养含量和潜在的重金属污染.
主要方法:
- 结合了鱼样的营养分析和来自六个非洲国家的国家家庭调查数据.
- 分析了干鱼消费中必需营养素的饮食摄入量.
- 评估了与家庭人口统计和地理因素相关的干鱼消费的普遍性.
主要成果:
- 干鱼的小部分提供了超过15%的关键营养素 (,,铁,,,维生素B12和D) 的建议摄入量.
- 在科特迪瓦,尼日利亚,马拉维,塞内加尔,坦桑尼亚和乌干达,大约三分之一的家庭 (约1.44亿人) 每周消费干鱼.
- 干鱼的消费者比新鲜鱼多54%,特别受益于贫困家庭和靠近海岸线或城市中心的家庭.
- 在干燥的鱼样中发现了低度的重金属.
结论:
- 营养丰富的干鱼及其供应链对于热带地区的粮食安全和营养至关重要.
- 干鱼可以有效地弥补营养缺口,特别是在远离渔业或城市地区的家庭中.
- 需要采取政策来支持可持续的干鱼生产,解决过度捕捞和市场竞争问题,同时帮助加工商.
相关概念视频
01:28Proteins: Dietary Sources and Requirements
1.5K
Consuming animal-based products offers high-quality proteins that contain optimal levels and combinations of essential amino acids, crucial for tissue repair and growth. Foods like eggs, milk, fish, and most meats are a source of complete proteins. Legumes and cereals are abundant in proteins; however, they typically lack a full range of essential amino acids. As a result, they are considered incomplete protein sources. Some plant sources like soybeans, quinoa, and amaranth do contain complete...
1.5K
01:43Sustainable Development
14.8K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
14.8K
02:32Osmoregulation in Fishes
52.8K
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
52.8K
01:18Lipids: Dietary Sources and Requirements
1.8K
Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
1.8K
01:23Dietary Connections
61.5K
In biological systems, most metabolic pathways are interconnected. The cellular respiration processes that convert glucose to ATP—such as glycolysis, pyruvate oxidation, and the citric acid cycle—tie into those that break down other organic compounds. As a result, various foods—from apples to cheese to guacamole—end up as ATP. In addition to carbohydrates, food also contains proteins and lipids—such as cholesterol and fats. All of these organic compounds are used...
61.5K
01:27Overview of Protists
1.4K
Protists are diverse eukaryotic microorganisms that lack the specialized tissues of plants and animals and the chitinous cell walls of fungi. Their early divergence within Eukarya resulted in structural, functional, and ecological diversity. They are classified into supergroups such as Archaeplastida, Excavata, Amoebozoa, Rhizaria, Alveolata, and Stramenopiles, determined through genetic analysis and structural similarities.Structural and Functional AdaptationsProtists have various adaptations...
1.4K