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Research On The Processing Technique Of Green Tea Under Anoxic Stress And Equipment

Posted on:2012-01-14Degree:MasterType:Thesis
Country:ChinaCandidate:E ZhangFull Text:PDF
GTID:2131330335962782Subject:Mechanical design and theory
Abstract/Summary:PDF Full Text Request
T h is p a pe r is to f ir st p r oc es s g re e n te a un d e r a no x i c st r e ss in te r ms o f va c uu m dr y in g ta nk un d e r di f f e r e n t te c h no l o g i c a l c on di t i o n s , th e n de te r mi n e th e ir c on te nt o f f r e e a mi n o a c id s a nd te apo l y ph e n o l s a nd th e a ss o c ia te d pr oc e ss i n g s a r e o bt a in e d a c co r di n g to d if f e r e nt r e q ui r em e n ts a nd f in a ll y th e or e ti c e xp l o r a ti o n s a r e ma de .T he th r us t of th i s th e si s is a s f o ll o w s:I n th e f ir st c ha pt e r , a su r v e y of th e li t e r a tu r e is ma de on th e su b je c t th a t va r ie d tr a di t i o na lpr o c es s i n g s of g re en te a a nd G a b a ro n te a a nd th e ir e q ui p me nt s , a nd th e n so me c om m e nt s a r e ma de on th e pr oc e ss i n g s of g re en te a . F in a ll y , t h e su b je c t ma tt e r of th e r e se ar ch is in t r od uc e d.I n th e se c on d c h a p te r , th e su b je c t ma tt e r is to a pp l y a n ox i c st r e ss to th e c on c re te pr oc ed u r e s of g re en te a pr od u c ti o n ; f or th is p ur po s e , te a is pr o c e ss e d in te r ms of v a c u um dr y in g ta nk un d e rdi f f e r e n t te c h no lo g i c a l c o nd i t i o ns , w h ic h a r e d e si g n e d a c c or d i n g to th r e e v a r ie d f a c to r s , n a me ly te mp e r at u r e , du r a n c e o f he a ti n g a nd d e g r ee of v a c u um .I n th e th ir d c ha pt e r , a c a re f u l c he m i ca l a na l y si s i s m ad e by t he st an d a r d o f G B /T 83 13—20 02 a nd G B /T 8 31 4—2 00 2 . Pr e c is e ly , f r e e a mi n o a c id s a n d te a po ly ph e no ls c on te n t of th e pr oc es s e d g re e nte a in v o lv e d in th e p r e vi o u s c ha p te r b y us i n g U V 36 0 0 is d e te r mi n e d.I n th e f ou r th c ha p te r , da ta a na ly se s a r e ma de a nd , a c co r d in g to th e r e su l t s , th e a ss o c ia te dpr o c es s i n g s un de r a n ox i c st r e ss a r e ob ta in e d.I n th e f if th c ha pt e r , o n th e b a si s o f pr oc e ss i n g of g re en te a a n d a su r ve y of tr a di t i o na l g re en te a - pr o c e ss i n g ma c hi n e , a n ox y g en - f re e pr oc e ss i n g e qu i p m e n t is d e si g ne d. A n d in th e la st c ha pt e r , pr oc e ss i n g of g re en te a is su m m a r iz e d b a se d on th e in v e st i g a ti o n s ma d e in th e pr e vi o u s c ha pt e rs , r e f le c ti o n s ov e r ot h e r a sp e c ts of th e su b je c t a r e ma de .
Keywords/Search Tags:Processing of GreenTea, Production under Anoxic Stress, Determination of Free Amino Acids Content, Determination of Tea Polyphenols Content, Design of Oxygen-free Processing Equipment
PDF Full Text Request
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