mustard seed black mustard الخردل الاسود origin: dried ripe seeds of brassica nigra...
TRANSCRIPT
Mustard seedBlack mustard
• االسود الخردل
• :Origin dried ripe seeds of
Brassica nigra :Family cruciferae
)Brassicaceae(
• االسود الخردل
• Origin: dried ripe seeds of
Brassica nigra Family: cruciferae
)Brassicaceae(
White mustard
• االبيض الخردل
• :Origindried ripe seeds of
Brassica alba : Family cruciferae
)Brassicaceae(
• االبيض الخردل
• Origin: dried ripe seeds of
Brassica alba Family : cruciferae
)Brassicaceae(
Mustard seedBlack mustard White mustard
Shape Spherical or nearly spherical
Size Smaller larger
Color Reddish brown yellow
Odor - Dry : odorless- Crushed with H2O : Pungent
No pungent odor even when crushed
Taste bitter , rapidly becomes pungent Pungent
Surface - Minutely pitted- Network reticulation
Minutely pitted
Mustard seedBlack mustardWhite mustard
Hilum Paler in color
Micropyle Adjacent to the hilum
Raphe Absent
Kind Ex-albuminous
Absent
Absent
Perisperm
Endosperm
Hilum
Radicle
2 cotyledonsTesta
T-Cut in Black mustardRadicle
2 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 seed
Hilum
Micropyle
Chalaza
Funicle
Powder of Black mustard
Color : Pale brown.
Odor : slight odor when dry and become pungent when crushed with H2O
Taste : bitter , rapidly becomes pungent
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(
Nutmeg seedsالطيب جوز بذور
Nutmeg seedsالطيب جوز بذور
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 !!! () 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.
Description of the KernelKernel = perisperm + endosperm + embryo.
Outer perisperm
Inner perisperm
endosperm
embryo
L - cut
T - cut
Perisperm : present , thin dark brown penetrating to the endosperm giving marbelled or ruminated appearance.
Endosperm : present , greyish brown
Powder NutmegPowder Nutmeg
Color : reddish yellow to reddish brown
Odor : strong aromatic and characteristic
Taste : aromatic pungent
outer perisperm
K - acid tartarate
Inner perisperm
Oil cell
Aleurone grain( crystalloid !!! )
Starch granulesTannin idioblast
Fat crystals !!!!(50% chloral hydrate)
endosperm
Fat globule
vessels