Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Fluorescence and Phosphorescence: Instrumentation01:25

Fluorescence and Phosphorescence: Instrumentation

739
Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
739
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview01:02

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

3.0K
Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material,  molecules absorb light depending on the energy required for...
3.0K
Spectrophotometry: Introduction01:16

Spectrophotometry: Introduction

3.5K
Spectrophotometry is the quantitative measurement of the absorption, reflection, diffraction, or transmission of electromagnetic radiation through a material as a function of the intensity and wavelength of the radiation. A spectrophotometer is a device used to measure the change in the radiation intensity caused by its interaction with the material.
The essential components of a spectrophotometer include a source of electromagnetic radiation, a slot for placing a material to be analyzed, and a...
3.5K
UV–Vis Spectroscopy: Beer–Lambert Law01:09

UV–Vis Spectroscopy: Beer–Lambert Law

4.0K
The Beer-Lambert law describes the relationship between absorbance and concentration, which combines the principles established by scientists Johann Heinrich Lambert and August Beer. Lambert's law states that when light passes through a medium, the loss in intensity is directly proportional to the original intensity and the path length of the light. Beer's law proposed that the transmittance of a solution remains constant if the product of concentration and path length is constant. The...
4.0K
UV–Vis Spectrometers01:14

UV–Vis Spectrometers

1.5K
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
1.5K
UV–Vis Spectroscopy of Conjugated Systems01:32

UV–Vis Spectroscopy of Conjugated Systems

7.3K
Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent...
7.3K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Glymphatic dysfunction is associated with hyperglycemia-related cortical thinning in patients with type 2 diabetes mellitus.

Journal of endocrinological investigation·2026
Same author

<b>Quantification of 14 Major and Minor Cannabinoids with Absorbance</b>-<b>Transmittance Excitation</b>-<b>Emission Matrix Spectroscopy and Machine Learning</b>.

Cannabis and cannabinoid research·2026
Same author

From Sensometabolomics to Rapid Analysis and Machine Learning: A Perspective on Modeling Wine Mouthfeel.

Journal of agricultural and food chemistry·2026
Same author

Understanding polysulfide evolution in wine: insights from accelerated ageing and real-time cellaring in different packaging.

Food chemistry: X·2026
Same author

Role and mechanisms of ferroptosis in cognitive impairment: From molecular pathways to therapeutic targets (Review).

International journal of molecular medicine·2026
Same author

Genes involved in small peptide biosynthesis are implicated in water stress responses of grapevine.

The Plant journal : for cell and molecular biology·2025

関連する実験動画

Updated: Sep 10, 2025

The Terroir Concept Interpreted through Grape Berry Metabolomics and Transcriptomics
13:02

The Terroir Concept Interpreted through Grape Berry Metabolomics and Transcriptomics

Published on: October 5, 2016

10.5K

ぶどうとワインの組成分析と品質管理のための光スペクトル

Shuyue Fan1, Keren A Bindon2, Adam M Gilmore3

  • 1School of Agriculture, Food and Wine, and Waite Research Institute, The University of Adelaide, Adelaide, Australia.

Advances in food and nutrition research
|August 24, 2025
PubMed
まとめ

ワインの品質の定義は複雑ですが,化学的および感覚的な方法が役立ちます. 化学測定と組み合わせた光スペクトロスコピーは,ブドウとワインの分析に迅速で客観的なアプローチを提供し,ワイン製造の決定を支援します.

キーワード:
化学測定法機械学習モデリングスペクトル指紋ビティス・ヴィニフェラワインの化学

さらに関連する動画

Author Spotlight: Exploring the Fermentation Microbiome Through Next-Generation Sequencing
07:34

Author Spotlight: Exploring the Fermentation Microbiome Through Next-Generation Sequencing

Published on: December 1, 2023

817
Construction of Models for Nondestructive Prediction of Ingredient Contents in Blueberries by Near-infrared Spectroscopy Based on HPLC Measurements
10:25

Construction of Models for Nondestructive Prediction of Ingredient Contents in Blueberries by Near-infrared Spectroscopy Based on HPLC Measurements

Published on: June 28, 2016

10.7K

関連する実験動画

Last Updated: Sep 10, 2025

The Terroir Concept Interpreted through Grape Berry Metabolomics and Transcriptomics
13:02

The Terroir Concept Interpreted through Grape Berry Metabolomics and Transcriptomics

Published on: October 5, 2016

10.5K
Author Spotlight: Exploring the Fermentation Microbiome Through Next-Generation Sequencing
07:34

Author Spotlight: Exploring the Fermentation Microbiome Through Next-Generation Sequencing

Published on: December 1, 2023

817
Construction of Models for Nondestructive Prediction of Ingredient Contents in Blueberries by Near-infrared Spectroscopy Based on HPLC Measurements
10:25

Construction of Models for Nondestructive Prediction of Ingredient Contents in Blueberries by Near-infrared Spectroscopy Based on HPLC Measurements

Published on: June 28, 2016

10.7K

科学分野:

  • ワイン造りと葡萄栽培
  • 分析化学
  • 食品科学

背景:

  • ワインの品質は主観的であり,さまざまな視点から定義することが難しい.
  • 伝統的な化学的および感覚的方法がありますが,時間がかかります.
  • 客観的で迅速で費用対効果の高い評価方法がますます求められています.

研究 の 目的:

  • ワインの品質の定義と測定方法を概説する.
  • ワインの分析における新型スペクトロスコピク技術の応用について検討する.
  • ぶどうとワインの研究のための光スペクトロスコーピーの進歩を強調する.

主な方法:

  • ぶどうとワインの品質の評価のための化学的および感覚的方法のレビュー.
  • 光譜技術,特に光光譜の探索
  • 化学測定と機械学習をスペクトルデータと統合する.

主要な成果:

  • 化学測定法と組み合わせた光スペクトロスコピーは,客観的なワイン分析に利点をもたらします.
  • このアプローチは,フェノール検出,熟成度モニタリング,ワインの認証におけるアプリケーションを可能にします.
  • ワイン産業における迅速かつ費用対効果の高い品質評価を支援しています.

結論:

  • 光スペクトロスコピーは,ブドウとワインの分析のための強力なツールです.
  • 化学測定と機械学習との統合により ワイン製造の技術は進歩しています
  • これらの新しい技術を用いた客観的な品質評価は,ますます実現可能になっています.