The absorption decollrization prop erties of enzymatic hydrolysis of xylo -oligosccharide solution on freshcalciumphosphateprecipytate(FCPP)wereexperimentallystudied.Theexperimentalresults indicatedthat the absorption ratio of coloring matters was larger than that of xylo -oilgosaccharide on FCPP,and the absorp tion ratio of xylo -oligodaccharide rais ed with the calciumhydrogen dosage.The absorption ratio of coloring matters reached 87.1%and the absorption loss of xylo -oligosaccharide was 10%at5.0g /L calcium hydrogen and24g /LTRS.The absorption isothermo f coloring matters on FCPPbelonged t o Langmir type.

The effects of the three hurdle facto rs(salt,pHand additives)affected on the microorganisms whic h caused the(bulging)of soft packaged zhacai were studied.The results proved that the microorganisms would be inhibited while pH below 5.0.And whi le pH was below 5.5,the microorganis ms woud be inhibited no matter whether it was added with 3%salt or 5%salt or without preserrafives.

CaneSugarhydrolyzedbytheordinaryfoodacidifiers,suchas hydrochlo ricacid,citricacidandtartaric acid to produce invert sugar was studied with HPLC.The results revealed t hat the invert sugars with the different hydrolytic degrees of sugar could be easily made by these acidifiers.If t he additive amount of organic acid wa s0.15%tosugar,about90%ofsugarwas convertedafter150minunder85.0℃.Thequalityofsugaralsoaffectsed the hydrolytic properties of organi c acidifiers and the quality of invert sugar.

Trehalose is a natural functional d isaccharide.It could be widely used in foodstuffs,pharmaceuticals,cosmeticandagricultureproducts.Trehalose’ s useswererestrictedduetothediff icultyinproducingit.Recently,peoplefoundanovelenzymefrombacteria---trehalosesynthase.This studymain lydiscussedthecharacteristics of trehalose synthase activity in permeabilized cells.The properties o f trehalose synthase in the permeate d cells were investigated systematically.The enzyme exhibited an optimumtemp erature of 35℃,and an optimumpHof7.0～7.8.The enzyme was stable at30～40℃,pH6.6～7.8.The activity of treh alose synthase was increased by addition of Mg 2+ ,K + and Na + ,but was inhibited by Zn 2+ ,Mn 2+ ,Cu 2+ ,Ca 2+ ,Ba 2+ .The enzyme could cat-alyze the conversion ofmaltose into trehalose by intramolecular transg lucosylation,but it could slightly hydrolyze maltose into glucose,and it was inactive on other saccharieds.

The paper mainly researched the prop erties of polyphenoloxidase extracted fromlettuce.It studied the PPOactivities with catechol as substrate in different pH,temperature,enzyme concertrations,substrate c oncer-trations and inhibitors.The results showed that there existed two kinds of isoenzymes in lettuce PPO with its opti-mumpHandtemperature as 5,7and50℃,respectively and the Kmand max as 7.125×10 -3 mol /L,1.4625×10 -2 U /min,respectively.The orders of i nhibition effects fromstrong to wea k were fromNaHSO 3 ?PA?VC to EDTA.

The enzymolysis of cellulase in two s ubstrates(filter paper and absorbent cotton)was comparatively studiedto assay theeffects ofenzym ic hydrolysis andsaccharification ofcellulose invariable temperatur e andpH.The optimumtemperature and pH,and t he inhibition effect of the alcohol’ s during the process of enzymic hy-drolysis were also studied.

Polysaccharide was extracted from Grifola frondosa Mycelia then isolated and purified a nd fimally.G.F.-1was obtained.The results showed that G.F.-1was a kind of pure poly saccharide and large molecule that had better consistency,In addition,its Molecular weight was 1.23×10 6 and mol ratio of sugar composition was Xyl∶Man∶Glc =0.9∶1.4∶4.7respectively.Its first stru cture was made ofβ-D -Glc with the main chain bonds ofβ(1→3)andβ(1→6),where the substitutional ramification mostly took place in C6.

Thedevelopmentofediblewrappingm aterialis oneoftheresearchfocioffoodpackageindustry,andhas widely come to attention in some deve loped countries.Because of high int ensity of tension and poor flexibility of starch -based filmand in order to imp rove the flexibility and transparen cy of starch -based edible wrapping pa-per,experimentalstudyonthesynergicfunctionbetweenpotatostarcha ndedibleadhesivesor /andplasticizerwas discussed.Results showthat 7.5%glycerin,0.15%CMCand 0.30%alginate sodiumcould increase the en-durance life and the transparency va lue of the edible paper to 48times and46.4%,respectively.

By using mid -grade and lowgrade green tea as rawmaterial,the chemical structures of caffeine and tea -polysaccharide extracts by mic rowave treatment were studied in the paper.By using purified water as the solvent,tea was extractedunder mic rowave treatment,thenthe greentea was leached3times withpurifiedwater.The caffeine and the -polysaccharid e were separated fromthe extracted s olution and purified.The results of the analysis of UV -Vis and IRshowed that the microwave had no effecf on the chemical structures of caffeine and tea -polysaccharide.

Twospecies ofbacteria,whichcould usebittersaponinas theonhycarbon source,wereobtainedfromthe soilwhereasparagus peelhadbeenheapedforalongtime.KWG -1,abacteriumof pseudomonasspecies,grewfast underoptimumtemperature30℃andpH7.0.Itcoulddecomposetheasparagu s peelandbeextractwithmethanolto make bitter ness disappear.

Inseveralstudies,tannininforage s anddiets has already shownantinut ritionalproperties to humanand herbivorousanimals.Ontheotherhand,somecompounds withlowmolecula rweight,obtainedfrompurificatio nof tannindegradation,exhibitedmany biologicalactivities.Sothestudy onbiologicaldegradationofvegeta bletannin was veryimportant.Inthis paper,am icrobialstraincapabletodegradevegetabletannins was isolatedaccordingto its high capacity of removing chemic al oxygen demand.After being incubated in Czapek medium with tannin concentration5g /L,at28℃,pH4.5,120r /minfor3days,themaximumremovaloftanninreached10%.Based on its morphological and physiologic characteristics,the strain was id entified as Aspergillus niger.

In this paper,the physical and chemi cal characteristics,biological fu nctions of matallothionein(MT )were reported and the methods of Zn -M T induced,extracted,purified and identified were studied.

Abstrac t:The process conditions of tomato win e were studied.The results showed th at the fine tomato wine was produced by alcohol yeast fermentin g at25℃for 7d,where the alcoholometry was ,the color was orange,the wine body was bright and the flavour was go od.At the same time,this product had VC0.157mg /100g and methanol0.03g /100ml.

This experiment aimed at studying t he possibility of industrial processing Labadou by Mucor(isolated formfermentedtofu).Mucorwas inoculatedtocookedsoyb ean.Theresults showedthatbyinocu lating0.5percent pure Mucor,in hygiengic condition a nd at stable temperature,the prefermented soybean could be obtained in23days and the product of post -ferme nted Labadou of high quality and delicious taste was obatained after 710days.Compared to traditional Labad ou processing,the processing cycle was shortened by nearly one month,an d the processing quantity was in large scale.Analysis indicated thatafte r fermentation the effective compon ents and nutrition value were increased.

The newtechnological conditions of extracting ginkgolic acids fromepi spermof Ginkgo Biloba L.were studied.The main factors affecting extraction rate of ginkgolic acids a nd optimum refining conditions were dis-cussed.The results showed that usin g 1∶7of 80%ethanol to epispermof Gin kgo Biloba L.weight ratio,Ginkgo BilobaL.epispermwasextractedbyr efluxingat60℃for3timesand4heach time.Then,theextracts was filtere d,enriched and refined with the resin.The obtained ginkgolic acids products showed 52.14%purity and 3.05%yield.

The experiment has studied the effec ts on the quality of soy sauce added wi th some dregs of the culture mediumof artificial Cordyceps militaris.The results indicated that th e soy sauce added 5%～10%dregs was su-perior to the ordinary soy sauce in se nsory organ test and physical and chemical test as well.

This paper studied the stability of color and gelatinoids fromAloe juice in the different processing con-ditions(temperature,pH,sucrose,VC,citric acid ect.).The experimental results showed th at the color and gelatinoids had better stability belowpH 5,<60℃.However,it had less stability in solutions of sucrose,cit ric acid.VCandNaClcouldintensifythe stability.ThelowconcentrationofVCandNaClhadbettereffectthanthe high concentration.It might be helpful t o Aloe gel processing.

The Contents of mineral elements in Houttuynia Cordata Thunb were determ ined and the processing technique andtheoperating formula ofHouttuynia CordataThunbbeveragewerecarriedout.Throughorthogon al experiment and analysis variance,w e concluded that the optimum making -up beverage formula was A 2 B 2 C 2 D 4 E 3 ,that is,made up of 35%Houttuynia Co rdata Thunb clear juice,5%cane sugar,2.2%honey,0.4%citric acid,0.3%potassiumcitrate and 57.1%water.Through the exp eriment,the optimumstabilizer was found to be is 0.12%of CMC and 0.10%of algae -acid -sodium -natrium.Furthermore,this article also introduced nutritive and pharm acological functions of Houttuynia Cordata Thunb.

Selenium was enriched and bio -converted by Lentinus edodes mycelia by means of submerged fermentation The content of Selenmm was enriched to 225μg /g.The existing state of Selenium w as con- verted from inorganic substance to o rganic substance,and the content of amino acid was high er than that of contrast.The powdered milk made f rom Se -enriched Lentinusedodes mycelia was rich in nutrition and became a functional food because of i ts high content of Selenium and polysaccharide.

This research has reported a formul a of 50%Potassium,Tripolyphosphate aqueous solution to restrain it’s hydrolyzation by addi ng certain amount of Potassium Pyrop hosphate.During the reseach,it was found that the pH of this aqueous solu tion would restrain the hydrolyzati on between 10.9and 11.9.And it is stability was observed for many days.

Dietary fiber frink of persimmon was studied by using Gongcheng Persimmo n in Guangxi as ma-terials.Optimization mixture design was conducted to study the amount o f fruit juice,acid,stabilizers and sugar used as main factors to set up a q uadratic with four variables regression equation.With the help of computer -aid optimum -searching,a best formula of reason amount of frui t juice,acid,stabilizers and sugar used was obtained.The products was graded and systemically analysed.At the same time,methods of deastringency was chosed by measuring the amount of tannis content.By studying the methods of measuring dietary fiber drink of persimmon,th e content of TDF ,SDF and IDF were dete cted respectively.The preservation of the colour,the odou r and the taste of dietary fiber drink of persimmon was also studied.

The study chose the yak beef grown in t he cold plateau prairie above the 3400meters altitude as the raw material by utilizing the advanced food process technologies,su ch as low temperature cooking,vacuumizing,two -times sterilization,vacuum rolling etc,some good quality soy sauce was used t o stew yak beef product which wasvacuum packed with a special flavored oil seasonin g package.Adding of 1percent herbal medicine to the stewing soup c ould make the product tender and succulent with moderate stiffness and good nourishment.All the above tech nology provides a new way for processing the yak beef product.

Pollen contains many kinds of nutrie nt components needed by the human bod y and has high nu-tritional and healthy effects.This article showed the method of rape pollen -wall breakage by microorganism zymolysis.The enzyme system produced by two Aspergilli(I:Aspergillus3040sp.J:Aspergillus3514sp.)was used separately and the mixture f rom above two enzyme solutions as the tools of rape pollen breakage was made accordingly.The results showe d that the efficiency of wall breakage by the mixed enzyme solution was much higher than the others.The wall breakage rate was more than 97%,whic h offered a fact that pollen -wall breakage needed some species of enzymes.At the same time,it provided a safe and credible approach to the edible and curative ways of pollen utilization.

The condition of mineralizing water made with Maifanshi and its application in fermenting drink like beer and rice wine were studied.The results were as follow:The main f actors influencing on concen-tration of mineral elements in mineralizing water are the granularity an d the content of Maifanshi,not conte nt of adding acid.The mineralizing water increases 5.7%of volume of origin al fermentation liquid,9.5%of sugar degree and 30%of alcohol degre e,but decreases 16.8%of reducing su gar.The mineralizing water decreases diacetyl concentration,increases alcohol degree in beer,an d improves the fermentation microbe.At the same time,the concentration o f health elements in beer and rice win e is increased.

Containing rich polysaccharides ,amino acids and mineral elements,Grifola frondosa which may be produced by submerged fermentati on in larger scale was edible -medicinal fungi.By analyzing effects on submerged fermentation of nutrit ion factors ,factors and levels were obtained.When the weight of dry fungi was used as the target,by orthogonal test which contained 4factors and 4levels,the optimum component of medium of Grifola frondosa was as follows:potato 250g,glucose30g ,yeast cream 1.0～2.5g,KH 2 PO 4 2～5g,MgSO 4 0.5～2g,water 1L.The optimum weight of dry fungi was 19.7g /L.The effect on target of the mass concentration r atio of carbon source was prominent.The test results were different when compared with those results in o ther articles.

EDTAtitration is a main method for th e determination of lactic acid in fermented broth.In this paper,factors influencing determination of lactic acid were studied with cont rol experiment and high performance liquid chromatography(HPLC).The results indicated that lactic a cid in fermented,broth must be neutr alized with excessive CaCO 3 before titration,then the pH value of solution was adju sted to exceed12.0with NaOH with calceinas indicator,a good reprodu cible result and recovery rate could be achieved.The levels obtained by HPLC in comparison with EDTA titration showed that EDTAwould yield excessive lactic acid data,but after calibration,EDTA method could still be used for quality control during lactic acid pro cessing.

Native starch,amylose andamylopec tinfromindica rice,japonica rice a ndglutinous rice were analyzed by gel permeation chromatography,respecticely.Results indicated th at native rice starch has 2～3main com-ponents as amylose,intermediate an d amylopectin.The pure rice amylose and amylpprctins were obtained by n -butanol recrystallization method.The molecular weight distribution o f amylopectins was broader than that of amylose.The molecular weight distr bution of amylopectin showed no sign ificant difference among three rice species,but the molecular weight di stribution of japonica rice amylose was wider than that of indicate rice a my-lose.The equations for average mole cular weight and elution volume of am ylose and amylopectin were estimate d,respectively.

Amethod of RP -HPLCquantitative determination of lovastatin in monascu s at its open ring formwas introduced.The sample of monascus was dissolved in 0.2mol /L NaOH.For extraction and transformation of lovastatin in to its open ring form,u ltrasonic treatment was used at 50℃f or 60min.Use silica adsorption chromatography for removing pigmen t and part of the impurities in the sam ple.After pretreatment the crude sample was purified by reverse phase-HPLC(phosphate buffer -acetonitril system V /V =65∶35as mo-tive phase,elute rate 1ml /min).The ultraviolet detector at 238nma ssayed the open ring formof lovastatin.By this method it revealed a good linear relationship within 0.2～6μg /ml andγ=0.9991.The lower limit of detection was 0.2μg /ml.The assay of 6repeated samples with standard showed the recovery as96%±3%.The variation coefficient was 3%.Fi ve lovastatin samples of Monascus fe rmentation products were determined by the above method and successful re sults were obtained.It revealed that this method was reliable for use.

In the paper the tissues of the edible river snail,stone snail and river clamwere digested and the trace mercury was assayed by the cold vapor atomic absorption method.By the relative standard deviation of the par-allel sample determination and the r ate of recovery of the additionalsta ndardsamplesthe result,showed that was simple,practical and highly accura te.

In this paper,LBP -4was extracted an d isolated.Then the defatting effec ts of LBP -4on monosodium glutamate induced obesity of mice were investigated.LBP -4w as applied to monosodium glutamate induced obesity of female mice at the dose of 20?40?60mg /(kg•d)for 30days ,respec-tively.Then the body weight,Lee’ s index,fatindex,lipidinserum,th e volume of fat cell and the content of Acc mRNA in fat tissue,but the high dose of LBP -4could decrease it.The r esults showed that LBP -4couldadjust the content of Acc in fat tissue of female mice and could decrease fat in monosodium glutamate induced obesity of female mice’ s body.

To investigate the anti -hypoxia eff ects and mechanism of conjugated lin oleic acid,the mice were divided into four groups and adm inistratedorallywith1.5%,0.5%,0.1%,0%CLA respectively for successive ten days.The survival time of mice under the hypoxia conditio n as well as the contents of myoglobin in heart muscle and skeleton muscle was determined.The results showed that 0.5%CLA prolonged the survival time,and increased the contents of myoglobin in h eart muscle and skeleton muscle of the mice markedly.

In this study,compound propolis formulae were prepared from making up th e propolis’ ethanol extract with Chinese herbal broths o f licorice(Radix Glycyrrhizac)roots and herbaceous peony(Paeonialaciflora)roots.By means of the formula,myent eric motion tests were then carried o ut in vitro,In vitro bacteriostatic tests were als o conducted against some enteropath ogens and opportunistic pathogens,such as Shigella flexneri,Salmonella,Staphlococcus aureus,Escherichia coli,Pseudomonas aeruginosa and Proteus.The tests revealed that the formula showed certain inhibitive effect on the peristalsis of in-testinal smooth muscles and also rem arkable antispasmodic and abirrita nt effects.Compared with acetylcholine(Ach)and epinephrine,two neutrotransmi tters and atropine,an antagonist,t he actions of compoundpropolis formula on intestinal smooth muscles have not realize dthroughα-,β-or M-re-ceptors.Instead,they were probabl ymyogenicorviaotherways.Inthein vitrobacteriostatictests,theformula showedstronginhibitiveeffecn on t he bacterial strains tested.All of t heir MICs were lower than500×10 -6 ,while those on Salmonella and Shigella flexneri were both250×10 -6 .The study formed a pharmacological experimental basis for the application of compound propolis formulatio ns as a functional food to regulate digestivefunctions.

To cure 25children bronchial asthma with Ginkgo biloba extract and hormo ne repectively.The level of blood platelet activating f actor(PAF)before and after the treatment on bro nchial asthma children with Ginkgo biloba extract was examined in a biologicalway.To o bserve the change of clinical symptoms and compare the change of bl ood PAF level between before and afte r hormone teratment.The results werethat:the children PAF l evels of the two treatments did not exist remarkable difference.(t =0.997,p >0.05),andthe time of asthma improvement was similar.Perhaps the Ginkgobilob a extract was a kind of new drug to prevent and tr eat on bronchial asthma.

The purpose of the study is to investi gate the effects of melatonin on enhancing immunity.2-month -old female Kunming mice were s elected in regulating immunity tests.And in the improving sleep tests 1-month -old male BALB /c mice w ere selected.Mice were divided into control,low -dose(0.5mg /kg.•bw)and high -dose(1.0mg /kg•bw)groups.Control group was given distilled water,low -dose and high -dose groups were g iven different melatonin doses.The results showed that,compared with control group,low dose melaton in could improve the thickness of tum escence toe by 22.3%(p <0.001),NK cell activity 62.2%(p <0.05)and levels of HC 50 17.1%(p <0.05),the cell’ s quantity of antibody formation(PFC)5.3%(p <0.05)and the carbon clearance indexα15.9%(p <0.05).It could also prolong the sleep time 23.4%(p <0.001)and improve the sleep rate 4times(p <0.01).High dose melatonin could improve the thickness of tumescence toe by 33.3%(p <0.001),prolong the sleep time 38.7%(p <0.001)and improve the sleep rate 3.5times(p <0.05).Conclusion:These results indivated that low dose melatonin had the function of enhancing immunity,while low and high dose melatonin could contribute to improve sleep quality.

Antimicrobial activities of persim mon leaves against seven food spoila ge and food -borne pathogens have been tested for the first time.T he results showed that the MIC(minimun inhibition concentrations)and the MBC(minimum bactericidal concentratio ns)of persimmon leaves were determined as 0.313and0.625g /ml against tested food spoilage and food -borne pathogens respectively,and that their antimicrobia l rate was more than 90%.The activity c ompounds in persimmon leaves have been isolated and elucidated as volatile oil,total flavonoid,coum arins,and organic acid.

g /ml LB juicer(prepared from Lycium barbarum L.)was orally administered to a group of mice(LBJ group),while the chow with 5%LB powder was s upplied to another group(LBP group).A normal control and an experimental control were also arranged.After the four groups of mice were fed for 15d,the three groups(LBJ group,LBP group,and the experim ental group)were exposed to 8.5Gy γ-rays and the survival rates recorded.In another experiment,a LBJ group,a LBP group,and an experimental control were fed for 12d,then,the three grou ps were exposed to 3.0Gy γ-rays.After 6d,the number of white blood cells(WBC)and lymphocytes(W-SCC)were counted,the lipidperoxidatio n level(LPO)in spleen and liver were determined and the mic ronucleus frequency(MF )of polychromatic erythrocytes and t he sperm aberration frequcncy(SF)were also observed.The results show ed that LBJ and LBP raised the survival rates by 20%and 30%,respec tively,lowered LPO levels,protected WBC and W-SCC to some extent,decreased MF by 62.5%and 64.3%respectively and lowered SF by 39.5%and 44.2%,re-spectively.Hence LBP has shown rema rkable radioprotective effects.

The"qingzha"chestnut treated at 50℃for 60min was used for studying the storage effect and postharvest physilogical and bioch emical changes .It indicated that re spiration rate,POD activity and CAT activity were controlled by heat tre atment,while amylase activity,soluble sugar and reductive sugar conte nt were reduced.The growth and spread o f fungi were notably controlled during storage period and weight loss rate was also lower than the control CK.But VC content was reduced after heat treatment.

Huoliduoxiaosu is a kind of concentr ated leaf spray fertilizer.It conta ins nutritional components and plant growth regulators,which c an regulate metabolism in plant.Under the common action of Huolid-uoxiaosu,vitamin C possessed anti -oxidization and sodium chloride possessed bateriostatic action,the effect of keeping vegetable fresh is obvious and the keeping time of vegetable is exceed 8days in summer,about 35℃room temperature.

The effect of ultra high pressure pr ocessing on enzymes relatedto food q uality was re-viewed.The content included the advance of enzyme kinetics study in ultr a high pressure.

Based on the research on the application of HACCP in the production of student milk,this essay studied its hazard analysis,determined critical control points,and formulated a running pattern of H ACCP program of corresponding control va lues and monitor system,so as to promote the management of pro duction quality,and ensure the safety of the products.

Some distinguishing features of Chi nese -style poultry -meat products a nd a series of problems involved in their industrinaiztion were discussed in this paper.It was s uggested that the raw materials,sui t-able for industrialition should be f irst checked seriously.Then it was i mportant to pay attention to experi-mental research and to standardizin g the processing procedures as well a s to quantitating the technolngical parameters of Chinese -style poultr y -meat products.In addition,some measures,for example,using the advanced processing technologies o f West -style meat products as refere nce,should be adopted to improve the processing technologies of Chin ese -style poultry -meat products.T hen,it was essintial for realizing industrialiation of Chinese -style poultry -meat products by design and manufacture complete sets of e-quipment for processing Chinese -style poultry -meat products.

The physicochemical changes of fish muscle protein such as the content of salt extractable protein,ATPase activity,the content of reac tive and total -SH group,the content of -SS bond,surface hy-drophobic activity and viscosity du ring frozen storage were introduced in detail.The effect of some factors like freshness of fish meat,pH value,bleaching conditions,freezing an d thawing conditions on these changes were also introduced.The denaturing mechanism of fish muscle pr otein was analyzed.

The sensory chemistry of flavor ,volatile and nonvolatile aroma compou nds as well as analysis methods,processing factor contrib uting to meat taste ,correlations of sensory and volatile compounds are summarized for Spanish"Serrano"and"Iberian",Italian"Purma ",France"Bayonne"dry -cured ham.The ar-ticle is supposed to be possibly help ful to modernizing the processing te chnology of chinese dry -cured ham such as Jinhua ham.

Cornus Officinalis Sieb.et Zucc is an important wild plant resource a nd also a traditional Chinese medicinal meterial.It cont ained some medicinal worthily ingre dients,the main compounds iso-lated from pulp involved the organic acids and their esters,five ring triterpenes and their esters,cy-cloalkene ether terpenes,tannins,vitamins,amino acids and minerals e tc.The pharmacological functions mainly included immune function,bl ood sugar lowering function,anti -i nflammation function,anti -shock function and heart strengthen ing function etc.Recently,only a fe w products of Cornus Officinalis Sieb.et Zucc.Were marketed in inland or foreign c ountries.The products includedthe tonic wine,the oral liquid,the beverage,the prese rved fruit,the jam and the can food etc.

The characteristics of homogeneous polyamino acids were described firs tly in the article.It stressed on reviewing some kinds of polyamino acids,for example:ε-polylysine,γ-polyglutamic acid,polyaspar-tate,polyornithine,and their application in the fields o f food,enviroment protection materials,biomedical materials,non -virus -carrier genetherapy and medicine step releasing system.