Presentation on theme: "Mustard seed White mustard Black mustard الخردل الاسود"— Presentation transcript:
1 Mustard seed White mustard Black mustard الخردل الاسود Origin: dried ripe seeds of Brassica nigraFamily: cruciferae (Brassicaceae)الخردل الابيضOrigin: dried ripe seeds of Brassica albaFamily : cruciferae (Brassicaceae)
2 Spherical or nearly spherical Mustard seedBlack mustardWhite mustardSpherical or nearly sphericalShapelargerSmallerSizeyellowReddish brownColorNo pungent odor even when crushedDry : odorlessCrushed with H2O : PungentOdorPungentbitter , rapidly becomes pungentTasteMinutely pittedNetwork reticulationSurface
3 Mustard seed White mustard Black mustard Paler in color Hilum Adjacent to the hilumMicropyleAbsentRapheEx-albuminousKindPerispermEndospermHilumRadicleTesta2 cotyledons
4 T-Cut in Black mustardQ : Embryo ???RadicleOrthoplocus: Two cotyledons are folded along their midrib and radicle is bent, facing one cotyledon.2 cot.TestaMidrib
5 Mustard seedQ ? 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.HilumChalazaMicropyleFunicle
6 T. S. Giant cell Sclerieds Black Mustard White Mustard Epidermis CollenchymaScleriedsPigment layerBlack MustardWhite Mustard
7 Powder of Black mustard Color : Pale brown.Odor : slight odor when dry and become pungent when crushed with H2OTaste : bitter , rapidly becomes pungent
10 Histochemical tests of Black Mustard Sudan 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)
11 Nutmeg seeds بذور جوز الطيب Dried ripe seeds of Myristica fragrans Houtt family Myristicaceae , deprived of its arillus and testa and with or without a thin coat of lime.
12 Position of Chalaza ( Anatropous !!! ) Position of H. & M. Removal of testa and arillusPosition of ChalazaGroove( position of raphe )( Anatropous !!! )Position of H. & M.
13 Description of the Kernel Kernel = perisperm + endosperm + embryo.Ovoid with numerous small dark brown points , lines and reticulately-furrowedGreyish brown color.Strong aromatic characteristic odor.Aromatic pungent taste.
14 Outer perispermInner perispermendospermT - cutembryoL - cutPerisperm : present , thin dark brown penetrating to the endosperm giving marbelled or ruminated appearance.Endosperm : present , greyish brown
15 Powder Nutmeg Color : reddish yellow to reddish brown Odor : strong aromatic and characteristicTaste : aromatic pungent
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