mustard seed black mustard الخردل الاسود origin: dried ripe seeds of brassica nigra...

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Mustard seed Black mustard ود سلاردل ا خ ل ا• Origin: dried ripe seeds of Brassica nigra Family: cruciferae (Brassicaceae) White mustard ض ي بلاردل ا خ ل ا• Origin: dried ripe seeds of Brassica alba Family : cruciferae (Brassicaceae)

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Post on 15-Jan-2016

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  • Mustard seedBlack mustard Origin: dried ripe seeds of Brassica nigra Family: cruciferae (Brassicaceae) White mustard Origin: dried ripe seeds of Brassica alba Family : cruciferae (Brassicaceae)

  • Mustard seedBlack mustardWhite mustard

  • Mustard seedBlack mustardWhite mustardHilumRadicle2 cotyledonsTesta

  • T-Cut in Black mustardRadicle2 cot.Orthoplocus: Two cotyledons are folded along their midrib and radicle is bent, facing one cotyledon.Q : Embryo ???MidribTesta

  • Q ? Hilum is adjacent to Micropyle and No raphe, Ovule ????Campylotropous: ovule bent upon itself, funicle, chalaza & micropyle close to one another, no raphe & nucellus curved. Mustard seedHilumMicropyleChalazaFunicle

  • ScleriedsGiant cellBlack MustardWhite MustardT. S.EpidermisPigment layerCollenchyma

  • Powder of Black mustardColor : Pale brown.

    Odor : slight odor when dry and become pungent when crushed with H2O

    Taste : bitter , rapidly becomes pungent

  • Powder of Black mustardPolygonal Network

  • Powder of Black mustardPigment cells

  • Histochemical tests of Black MustardSudan III red (due to fixed oil in embryo)

    Picric acid Yellow (due to protein in embryo)

    Ruthenium red rose red (due to mucilage in epidermis)

  • Nutmeg seeds Dried ripe seeds of Myristica fragrans Houtt family Myristicaceae , deprived of its arillus and testa and with or without a thin coat of lime.

  • Groove ( position of raphe )Position of H. & M.Position of Chalaza( Anatropous !!! )Removal of testa and arillus

  • Ovoid with numerous small dark brown points , lines and reticulately-furrowed

    Greyish brown color.

    Strong aromatic characteristic odor.

    Aromatic pungent taste.Description of the KernelKernel = perisperm + endosperm + embryo.

  • Outer perispermInner perispermendospermembryoL - cutT - cutPerisperm : present , thin dark brown penetrating to the endosperm giving marbelled or ruminated appearance.

    Endosperm : present , greyish brown

  • Powder Nutmeg Color : reddish yellow to reddish brown

    Odor : strong aromatic and characteristic

    Taste : aromatic pungent

  • outer perispermK - acid tartarateInner perispermOil cellAleurone grain( crystalloid !!! )Starch granulesTannin idioblastFat crystals !!!!(50% chloral hydrate)endospermFat globulevessels

  • Histochemical tests of Nutmeg powderI2 - blue ( starch ) - yellowish brown ( protein )

    Sudan III Red (oil globules)FeCl3 green color ( tannins )

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