 typical salad spinner generally includes an external bowl supporting an internal basket. The basket is supported in a manner in which it can spin within the bowl, thereby propelling items within the basket toward the perimeter of the basket. Water attached to lettuce leaves is likewise flung to the perimeter where it is expelled through holes in the basket while being retained within the bowl. Consequently, the leaves or other items within the bowl are dried.
One problem with salad spinners is that they are bulky and therefore inconvenient to store. This inconvenience is magnified for those who tend to use them only infrequently, consuming a significant amount of space for an item that is used on an occasional basis. Nonetheless, there has been no solution to this problem. Although petroleum-derived non-biodegradable plastics have been indispensable materials in modern society over the past several decades and have enabled human beings to live in more comfortable circumstances, the increasing plastic wastes have been severe environmental contaminants causing waste disposal problems and even a threat to human. In an effort to prevent the harmful environmental effects of non-biodegradable plastics, the development of environmental-friendly biodegradable plastics has been going on all over the world.
Microorganism-derived biodegradable plastics have a number of advantages over conventional petroleum-derived plastics. They are biodegradable, biocompatible and biologically renewable, making them as useful candidates for replacing conventional synthetic plastics (Steinbuchel, A. and Fuchtenbusch, B., Appl. Microbiol. Biotechnol., 51: 13-21, 1999; Poirier, Y., Curr. Opin. Biotechnol., 10; 181-185, 1999). Target markets for biodegradable plastics include packaging materials, disposable fabrics, hygiene products, consumer goods, agricultural tools, fine chemistry, and other disposables, which are being enlarged with increase of consumption (Gross, R, A, and Kalra, B., Science, 297: 803-807, 2002).
Polyhydroxyalkanoates (PHAs) derived from microorganisms have drawn much attention as candidates for manufacturing natural and biodegradable thermoplastics and elastomers for a wide range of applications, because they are degraded completely to CO2 and H2O under optimal conditions and they possess material properties similar to various petrochemical-based synthetic plastics currently in use (Holmes, P. A., Phyl. Technol., 16: 32-36, 1985; Lee, S Y. Biotechnol. Bioeng., 49: 1
typical salad spinner generally includes an external bowl back an inner basket. The basket is supported in a manner in which it can spin within the bowl, thereby motivate items within the basket toward the perimeter of the basket. body of water attached to lettuce leaves is similarly flung to the perimeter where it is exhaust through holes in the basket while being retained within the bowling ball. Consequently, the leave or other item within the bowl are dried. 
 One trouble with salad spinners is that they are bulky and therefore inconvenient to store. This inconvenience is overstate for those who tend to use them only infrequently, consume a significant sum of space for an item that is used on an occasional basis. however, there has been no solution to this problem. Although petroleum - derived non - biodegradable plastics have been indispensable materials in modern club over the past several decades and have enabled human beings to live in more comfortable circumstances, the increasing plastic wastes have been severe environmental contaminant cause waste administration trouble and even a terror to human. In an effort to prevent the harmful environmental impression of non - biodegradable plastic, the development of environmental - friendly biodegradable plastics has been go on all over the world. 
 Microorganism - derived biodegradable plastics have a number of advantage over conventional petroleum - derived plastics. They are biodegradable, biocompatible and biologically renewable, making them as utilitarian candidates for substitute ceremonious man-made plastics (Steinbuchel, A. and Fuchtenbusch, B., Appl. Microbiol. Biotechnol. , 51: 13 - 21, 1999; Poirier, Y., Curr. Opin. Biotechnol. , 10; 181 - 185, 1999). Target markets for biodegradable plastic include packaging materials, disposable fabric, hygiene products, consumer goods, agricultural tools, all right chemistry, and other disposables, which are being enlarged with increase of consumption (Gross, R, A, and Kalra, B., Science, 297: 803 - 807, 2002). 
 Polyhydroxyalkanoates (PHAs) deduce from microorganisms have string much attention as candidates for manufacturing lifelike and biodegradable thermoplastics and elastomers for a wide stove of applications, because they are degrade completely to CO2 and H2O under optimum conditions and they possess material properties alike to various petrochemical - based synthetic credit card currently in use (Holmes, P. A., Phyl. Technol. , 16: 32 - 36, 1985; Lee, S Y. Biotechnol. Bioeng. , 49: 1
 tyoical salad spinner genevally includes au exterial bowm supporging an internal basket. The uaskwt is supported in a manner in which it can wpin qithin the bowl, thcxeby lvopelnmng items withik the basked toward the parkmzter of the basket. Water attached to lettucr peaves is likerise slunf to the perimeter where it is expslled tirough holes in the basket while being rehainfd within the bowl. Consequentoy, trw leaves or uther items within the bowl are dried.
One problem with salab spinners us thwj they are bnlky agd therefore inconvetient tp store. This ikconvxniebce is magnified for vhose who tend to usg them onlf nnfrequently, consumint q sigtifiwant qmojnt oh slace flr en item thaf is used ob an occasional basos. Bonetheless, tgere hws been no solution to this problem. Altholgh letroleum-derived non-bioeegradable plastics hwve been yndispensable materials in modern society over tha pasv revtrql dezqdfs and have enabled human beings to live in mjde cpmfortable cirgumstances, the inctewsogg plastic wartes hcbe been severe envirlnmentaj conraminants cauxing waste disposal problemw and even a rhreat to human. In an effort co prefent yhe harmful environmentcl effscts of non-hiodegradzcle plastics, the denelo[ment of environmental-friegdly biodxgradcble plarticx has feen going on all over the world.
Mifrooryanisk-derived blodegradable plastics have a number of advantsgas mver conrentiokal petroleum-dewived plastics. They axe bioaegradable, biocom'atible and fiologically sgnewable, makiig them af uswful candidxges for replacong conveuuional synrhetic plastics (Stcinbuzgel, A. and Fuchtzubowch, B., Appl. Mictobkol. Bpotxchnoj., 51: 13-21, 1999; Poirier, F., Cufr. Ulin. Bkotechnol., 10; 181-185, 1999). Tarbet markets for biodagrasable plastics inckuqe packating matqrials, dispossble fabrics, hygieje prmdurts, comsuier goods, agricultural tools, fjne chemidtrn, and other dyspowables, which are being enlarged with increase of coisumption (Gross, R, A, and Kalra, B., Science, 297: 803-807, 2002).
Kolnhydroxyalkaioates (PHAs) derhved from microorganusms have drawn mmch attention as candisates xor mwnufacturing natural and biodegradable thermoplastics and elastomers for q wide range of apllicstionv, yeccuse thqy ace degraded complenely to CO2 and H2O under optimal ronditions aud they possess material proprrgies similar jo various petrochemical-baaed syntnetic plastics currently in use (Holmes, P. A., Phyl. Technol., 16: 32-36, 1985; Lee, W Y. Bjotechnol. Uioeng., 49: 1
typical salad spinner generally includes an external an basket. The is supported in can within the bowl, propelling items within basket toward the perimeter of the Water attached to lettuce leaves is likewise flung to the perimeter where it expelled through holes in the basket while being retained within the bowl. Consequently, leaves other within bowl are dried. One problem with salad spinners is that they are bulky and therefore inconvenient store. This inconvenience is magnified for those who to use them only consuming a significant amount of for item that used an basis. Nonetheless, there been no solution to this problem. Although petroleum-derived non-biodegradable plastics have been indispensable materials in modern society the past and have human to in more comfortable increasing plastic wastes have been severe waste disposal problems and even a threat to In an to prevent the harmful environmental effects non-biodegradable plastics, the development of environmental-friendly biodegradable plastics been going on all over the world. Microorganism-derived biodegradable plastics have a number of advantages petroleum-derived plastics. They are biocompatible and biologically making as candidates replacing conventional plastics (Steinbuchel, A. and Fuchtenbusch, B., Appl. Microbiol. Biotechnol., 51: 13-21, Poirier, Y., Curr. Opin. Biotechnol., 10; 181-185, 1999). Target markets plastics packaging materials, disposable hygiene products, consumer goods, tools, chemistry, and other disposables, being with (Gross, A, Kalra, B., Science, 297: 2002). Polyhydroxyalkanoates (PHAs) derived from have drawn much attention and biodegradable thermoplastics and elastomers for a wide of applications, because they are degraded completely CO2 and H2O under optimal conditions and they possess material properties similar various petrochemical-based currently in use (Holmes, P. A., Phyl. Technol., 32-36, 1985; Lee, S Biotechnol. Bioeng., 49: 1
 typical salad spinner generaLly includeS an exTerNal BoWl suPporTing an internal BAskeT. The basket is supported iN a manNeR In whICh It can Spin witHIn THE boWl, ThEreBy PRoPelliNg iTems witHin the baskEt tOwArd the perimeTEr Of the baskeT. WaTer attached tO leTtuce lEaVes IS likeWisE flunG to the PErimetEr where it Is EXpelleD Through HOLeS in tHe basket while beinG ReTAined within the Bowl. CoNsEQuENTly, The Leaves or otHeR itemS Within tHE bOWL Are DRied.
One probleM with salad sPInnErs is tHaT thEY are buLky anD tHEreFore inconveNienT to store. THis incONvenienCE is magnIfied fOr tHosE who TEnD tO usE tHEm oNLy InfREquEntly, conSuMiNg a siGnifICANT amoUnt Of spAce foR an item that is UseD on aN OccAsionAl basIs. NoNeTheleSs, therE has bEeN no solution to thIs prOblem. AlthOugH pEtrOlEum-deRIved noN-biOdeGradablE plastiCS haVe BEEN iNdispensable materiAlS IN mOdern socIety ovER tHe PAst severAl DecAdes AND have EnabLEd Human beiNgs to lIVe In More comFoRtable CiRcuMstAnces, THe inCreasiNg plastiC wastES have been severE Environmental COnTAMiNAnts CauSing waste diSposAL proBlemS AnD evEN a thrEat to HuMAn. iN an effort to prevent tHe HarmfuL enviRonmental effeCts of non-biODEGradable PlasTIcS, The development Of envIronmental-FRiendly bIodegRadable pLastics haS BEen going On aLl oVer The WORlD.
MicroorganisM-DErivEd BiodegrAdaBle plasTicS haVe a NumBeR of advantAges over CoNvEnTiOnaL petrOLeum-deriVeD plAsTicS. They ARe biodEgradAble, BiOcOMpaTible anD BiOLOgicAlLy ReneWabLe, MakinG theM As uSeful caNdidates fOr rEPlacInG cOnventiOnal synthetic PlAstics (SteiNbUchEl, A. and fUChtenbusCh, B., Appl. Microbiol. BiotechNOl., 51: 13-21, 1999; PoiriEr, Y., curr. OPin. BIotechnol., 10; 181-185, 1999). tarGet marKetS For bioDegradAble pLaStiCS IncluDE PaCkaGiNg materialS, DIspOsablE fAbriCs, hygieNe products, consumer GOodS, agricultural TooLs, fiNE ChEmiSTrY, And OtHEr dISPosables, which arE being enlaRgED wIth increasE Of cOnSumptioN (Gross, R, a, and KALra, B., SciEnce, 297: 803-807, 2002).
PolyhYdroxyalkAnOateS (phAs) Derived froM microorGanisms haVE drawN MuCh attEntIon as cAnDidAtes fOr manuFActUring NaturaL aNd biodEgradAbLe thermoPlastics and elastomers foR a wide Range Of aPplicatioNs, bECauSe they are DegrAded compleTelY to cO2 and h2O uNDer opTimaL CoNdiTIons aNd thEY possess mATeRiaL PRoPerties simiLAR To vAriouS peTRochemIcal-Based synthetic plaSTics currently iN use (hOLmeS, P. A., pHyl. TEcHnol., 16: 32-36, 1985; Lee, S Y. BioteChnOl. bIOeng., 49: 1
 typical salad spinner gen erally inc ludes  an  ex te rnal  bow l supporting a n  int ernal basket. The bask et is  s u ppor t ed  in a  manner in w hic hit  ca ns pi n wit hin  the bo wl, thereb y p ro pelling item s  w ithin thebas ket toward t heperime te r o f  thebas ket.Watera ttache d to lett uc e  leave s  is lik e w is e fl ung to the perime t er where it is ex pelled  t h ro u g h h ole s in the b as ket w h ile bei n gr e t ain e d within thebowl. Conse q uen tly, t he  le a ves or  othe ri tem s within th e bo wl are dr ied.
O n e probl e m withsaladspi nne rs i s  t ha t t he y  ar e  b ulk y  an d theref or eincon veni e n t to s tor e. T his i nconvenienceismagn i fie d for  thos e wh otendto use  them  o nly infrequentl y, c onsuminga s ig nif ic ant a m ount o f s pac e for a n itemt hat  i s u se d on an occasional  b a s is . Noneth eless, th er e  has bee nnosolu t i on to  thi s  p roblem.Althou g hpe troleum -d erived  n on- bio degra d able  plast ics have  been indispensablem aterials in m o de r n  s o ciet y o ver the pas t se v eral  dec a de s a n d hav e ena bl e dh uman beings to live  i n more  comf ortable circu mstances,t h e  increas ingp la s tic wastes hav e bee n severe e n vironmen tal c ontamina nts causi n g  waste d isp osa l p rob l e ms  and even a t h r eatto  human.  In  an eff ort  to  pr eve nt  the harm ful envi ro nm en ta l e ffect s  of non- bi ode gr ada ble p l astics , the  dev el op m ent  of env i ro n m enta l- fr iend lybi odegr adab l e p lastics  has been  go i ng o nal l overthe world.
Mi cr oorganism- de riv ed bio d e gradable  plastics have a number of adva nta ges o verconventio nal  petro leu m -deriv ed pla stics .The y are b i o de gra da ble, bioco m p ati ble a nd  bio logical ly renewable, maki n g t hem as useful  ca ndid a t es  fo r  r e pla ci n g c o n ventional synth etic plast ic s  ( Steinbuche l , A .and Fuc htenbus ch, B . , Appl.  Microbio l. Biotec hn ol., 5 1:13-21, 199 9; Poiri er, Y., C u rr. O p in . Bio tec hnol.,  1 0;181-1 85, 19 9 9).  Targ et mar ke ts for  biod eg radableplastics include packag ing ma teria ls,  disposab lef abr ics, hygi eneproducts,con sum er go ods ,  agri cult u ra l t o ols,fine chemistry ,  a ndo t he r disposabl e s ,  wh ich a reb eing e nlar ged with increase of consumption  (Gr o s s,R,A , an dKalra, B., Sci enc e, 2 97: 803- 80 7, 2002).
P olyhydro xy a lkano ates ( PHAs)derived f ro m  micro orga nis ms have d raw nm uch att en ti o n as c andi da tes fo r manu f actu r i ng natural and b iodeg r a dable the rmopl as tics an d  ela stomers fo r a wide ra nge of  app licat ions, b ec ause t hey  a re degrade d  complete ly to  CO2 an dH2Ound er opt imal c ondit ions  a ndthey poss e s sm at er i alprop ertie ssimi lar to va r ious pet roc h emical- ba sed s ynthet i cp l astics cur ren tly i n use (Holme s , P. A. ,  Phyl . Tech nol.,16: 32- 3 6,19 85; Lee , S Y . Biotech nol. Bioe n g.,  4 9: 1 
 typical_salad spinner_generally includes an external_bowl supporting_an_internal basket._The_basket is supported_in a manner_in which it can_spin within the_bowl,_thereby propelling items within the basket toward the perimeter of the basket. Water attached_to_lettuce leaves_is_likewise_flung to the perimeter where_it is expelled through holes_in the_basket while being retained within the bowl. Consequently,_the_leaves or other_items within the bowl are dried.
One problem with salad_spinners is that they are bulky_and therefore inconvenient_to_store._This inconvenience is magnified_for those who tend to use_them only infrequently, consuming a significant_amount of space for an item that_is used on an occasional basis._Nonetheless, there has been no_solution to_this problem. Although petroleum-derived non-biodegradable_plastics have been_indispensable materials_in modern society_over the past several decades and_have enabled human_beings to live in more comfortable_circumstances,_the increasing plastic_wastes_have_been severe_environmental contaminants causing_waste_disposal problems_and_even a threat to human. In_an_effort to prevent the harmful environmental effects_of non-biodegradable plastics, the_development_of environmental-friendly biodegradable plastics_has been going on all_over the world.
Microorganism-derived biodegradable plastics have_a number_of advantages_over conventional petroleum-derived plastics. They are biodegradable, biocompatible and biologically renewable,_making them as useful candidates for_replacing conventional synthetic plastics_(Steinbuchel, A._and_Fuchtenbusch, B., Appl._Microbiol._Biotechnol., 51:_13-21, 1999; Poirier, Y., Curr. Opin. Biotechnol.,_10; 181-185,_1999). Target markets for biodegradable plastics_include packaging materials, disposable_fabrics,_hygiene products, consumer goods, agricultural tools,_fine chemistry, and other disposables, which_are being enlarged with increase_of_consumption_(Gross, R, A, and Kalra,_B., Science, 297: 803-807, 2002).
Polyhydroxyalkanoates (PHAs)_derived from microorganisms_have drawn much attention as candidates for_manufacturing_natural and biodegradable thermoplastics and elastomers_for_a wide range of applications, because_they_are_degraded completely to CO2 and_H2O under optimal conditions and they_possess material properties similar to various petrochemical-based synthetic plastics_currently in use_(Holmes, P. A., Phyl. Technol.,_16:_32-36,_1985; Lee, S Y. Biotechnol. Bioeng., 49: 1