まとめ
商業的な腸内食品には,しばしば亜鉛,銅,鉄,マンガンなどの必須ミネラルの誤ったレベルが含まれています. 一部の製品は,これらの重要な微量栄養素の推奨摂取量を満たしていません.
科学分野:
- 栄養科学とは,栄養科学である.
- クリニカル・ニュートリション
- 食品分析 食品分析について
背景:
- 腸内栄養は,口腔で食物を摂取することができない患者にとって非常に重要です.
- 腸内栄養素の正確な含有量は,患者の健康と回復に不可欠です.
- 腸内飼料の組成に関する以前の評価は,潜在的な変動性を示しています.
研究 の 目的:
- 商業用腸内食品の亜鉛,銅,鉄,マンガンの含有量を定量化するために.
- 分析された鉱物濃度を,製造業者によって示された値と比較する.
- 確立された食事摂取推奨事項の遵守を評価する.
主な方法:
- 14種類の商用腸内用飼料製品における鉱物含有量 (亜鉛,銅,鉄,マンガン) の分析.
- 精密な元素定量化のために確立された実験室の技術を使用しました.
- 結果は,米国の推奨食量 (RDAs) と,推定安全かつ適切な毎日の食量 (ESADDI) と比較した.
主要な成果:
- いくつかの腸内用飼料の製造業者によって宣言されたミネラル含有量と分析されたミネラル含有量との間に大きな違いが観察されました.
- 複数の製品では亜鉛,銅,鉄,マンガンの濃度が最適以下であった.
- 一部の飼料は,主要なミネラルの推奨日摂取量8.4MJ (2000kcal) を満たしていない.
結論:
- 商業的な腸内食品は,一貫して正確なまたは適切なレベルの必須微量ミネラルを提供しない場合があります.
- 製造業者の情報だけに頼ることは,栄養素含有量に関して誤解を招く可能性があります.
- 臨床的影響には,これらの製品に依存する患者の微量栄養素欠乏の潜在的なリスクが含まれます.
関連する概念動画
01:28The Early Endosome: Endocytosis of Transferrin
Essential proteins such as insulin or low-density lipoprotein (LDL) and micronutrients such as iron enter a eukaryotic cell through receptor-mediated endocytosis. Subsequently, the early endosomes fuse with the vesicles containing such receptor-ligand complexes and play a vital role in sorting the incoming ligands and receptors. While the ligands are either degraded inside the vesicle or released into the cytosol, their receptors are returned to the plasma membrane for further rounds of...
01:33Enzyme-Linked Immunosorbent Assay
In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen. Enzyme-substrate reaction allows the antigen to be visualized or quantified.
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen. Enzyme-substrate reaction allows the antigen to be visualized or quantified.
01:18Effects of EDTA on End-Point Detection Methods
Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a result, EDTA...
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a result, EDTA...
01:26Enteral Nutrition I: Orogastric and Nasogastric Feeding
Enteral nutrition delivers nutrients directly to the stomach or small intestine through a tube. This method is appropriate for patients who cannot eat but still have a functioning digestive system. It is also beneficial for individuals with swallowing difficulties, anorexia, malabsorption, or those who have undergone gastrointestinal (GI) surgery.
Orogastric (OG) and nasogastric (NG) feeding are two standard methods used for enteral nutrition. Enteral nutrition is often preferred over...
Orogastric (OG) and nasogastric (NG) feeding are two standard methods used for enteral nutrition. Enteral nutrition is often preferred over...