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Precipitate Formation and Particle Size Control01:16

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In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
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Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
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Size-Exclusion Chromatography

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In size-exclusion chromatography (SEC), also known as molecular-exclusion or gel-permeation chromatography, molecules are separated based on their sizes. This technique is important for separating large molecules such as polymers and biomolecules. The two classes of micron-sized stationary phases encountered in SEC are silica particles and cross-linked polymer resin beads. Both materials are porous, but their pore sizes vary significantly.
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Colloidal precipitates

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The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
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Changes in polymorphic forms can significantly influence the bioavailability of poorly soluble drugs. Although the FDA defines pharmaceutical equivalence based on having the same active ingredient, dosage form, and route of administration, it does not automatically disqualify products with different polymorphic forms. This means two products with different polymorphs can still be deemed pharmaceutically equivalent. However, polymorphic differences can affect properties like wettability,...
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Factors Influencing Drug Absorption: Pharmaceutical Parameters01:28

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Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
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セレン強化ひよこ豆飲料粉末:粒子径が組成と機能性にどのように影響するか

Frineth de la Luz Limón-Aguilera1, Anayansi Escalante-Aburto2, Israel García-Cano3

  • 1Tecnologico de Monterrey, School of Engineering and Sciences, Av. Eugenio Garza Sada 2501, 64849, Monterrey, Nuevo León, Mexico.

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まとめ

発芽ひよこ豆粉末のふるい分けにより、タンパク質と溶解性が向上した。魚油を用いた処方が最も高いタンパク質含有量と改善された水分溶解指数(WSI)を示し、急速消化性デンプンの含有量が減少した。

キーワード:
ひよこ豆機能性飲料形態学的特性粒子径セレン生物強化デンプン消化性技術的機能性

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科学分野:

  • 食品科学
  • 栄養生化学
  • 農業科学

背景:

  • 発芽ひよこ豆粉は、植物由来タンパク質の潜在的な供給源です。
  • セレン生物強化および魚油の添加は、栄養プロファイルを強化することができます。
  • 押出加工およびふるい分けは、食品粉末の特性を改変する方法です。

研究 の 目的:

  • 押出加工された発芽ひよこ豆粉末の栄養および機能特性に対するふるい分けの影響を調査すること。
  • セレン生物強化および魚油添加がこれらの粉末に及ぼす影響を評価すること。
  • タンパク質含有量、溶解性、デンプン消化性を改善するための最適な処方を決定すること。

主な方法:

  • 発芽ひよこ豆粉を、セレン生物強化および魚油の有無にかかわらず加工しました。
  • 押出加工により粉末を作成しました。
  • ふるい分けにより微細画分を分離しました。
  • 近似分析、水分溶解指数(WSI)、急速消化性デンプン(RDS)含有量、および脂肪酸プロファイルを測定しました。

主要な成果:

  • ふるい分けにより、すべての処方でタンパク質含有量とWSIが増加しました。
  • 非セレン強化発芽ひよこ豆と魚油の処方が最も高いタンパク質含有量(100 g乾燥重量あたり23.63 g)と、ふるい分け後のWSIの有意な増加(18.76%から37.71%)を示しました。
  • この処方は、ほとんどの他のひよこ豆粉末と比較してRDS含有量も低かった。
  • 魚油なしのセレン生物強化ひよこ豆(SSWW)は、リノール酸とリノレン酸を含む唯一の処方でした。
  • 微細画分はグルタミン酸、アスパラギン酸、アルギニンが豊富で、WSIの改善に寄与しました。

結論:

  • ふるい分けは、押出加工された発芽ひよこ豆粉末のタンパク質含有量と水分溶解性を改善するための効果的な方法です。
  • 発芽ひよこ豆と魚油を組み合わせた処方は、優れた栄養および機能特性を提供します。
  • セレン生物強化および特定のアミノ酸プロファイルは、ひよこ豆ベースの食品製品全体の品質に役割を果たします。