TC.DD&TP 9(1)-2013
DANH GIA CHAT LlTdNG, CAM QUAN CUA TRA CO StJfA Du'di NHIEU C 6 N G THlTC VA CACH PHA CHE
Phi Nggc Quyin', Truffng Tuyet Mai', Ldm Xudn Thanh' Nghien cim ticn hanh vdi myc dich lya chpn cong thirc tra co sQa(Euphorbia hirta L.) co chat lupng cam quan va ham lupng polyphenol cao. Tra co si?a dupc che bi€n theo 4 cong thiic ( C p khac nhau, dong goi 2g co sira kho/goi. Cac cong thirc tra dugc thu- nghi?m theo 2 each che bien la ham trong 10 phiil va dun soi trong 30 phut, tien h^nh danh gia cam quan va xac djnh ham lupng polypenot trong nudc tra co siJa thu dupc. Ket qua cho thay, ham lugng polyphenol triet tach tir tra co sira dun soi trong 30 phut cao hon tra c6 sQ-a ham trong 10 phiit. Diem cam quan lai phong thi nghi?m cao nhat lliugc ve cong thirc tra co siia CT2 (90% co sOa). Danh gia linh chap nh^n ciia tra co sua CT2 tren cpng dong cho thay, ty I? chap nh^n san pham ve mau sac, miii, vj d^t 84.3%. Do vay, cong thirc tra co sua CT2 (90% co sifa) dat dupc tieu chi chat lugng cam quan va ham lupng polyphenol cao, nen dimg tra co sua dudi dang dun soi trong 30 phut.
Tir khoa: ird cd sua, hdm lugng polyphenol I. DAT VAN DE
Cac nha nghien cuu va san xuat tren ih^ gidi da nghien ciiu va tao ra cac san phim CO kha nang kiem scat dudng huyet dudi nhiiu hinh thai khac nhau. Tai Nhat Ban, nudc tra la oi - loai do uong giiip han chS tang dudng huyet sau an - la mgt hinh thai dudi dang nudc chiet lach tir la 6i, sau dd qua pha che de dong chai, va da dugc sir dung pho bien tai Nhat [1], [2]. Tra mudp dang dudi dang ddng goi, sii dung bang each nhiing goi tra vao nudc soi, uong hang ngay, danh cho benh nhan dai thao dudng, ciing dugc sii dung pho bien tai mpt so nudc chau A ) [3].
Cac nghien ciru ve thanh phan hoat linh sinh hgc ciia cac loai thuc vat da cho thay ham lugng polyphenol co moi tucmg quan vdi cac hoat tinh sinh hgc nhu lie che men lieu dudng (nliu alpha-glucose.
alpha-amylase), chong oxy hoa [4]. Hon nira, cac nghien cim ve nguyen lieu dang hat, la cho thay nguyen lieu khi dugc xay
nho min thi khi pha che se cd ham luong polyphenol cao ban do tang dien tich tiep xiic cua nguyen lieu vdi dung mdi chiel tach diing trong pha che [5].
CJ Viet Nam, ty le mac benh dai thao dudng la 4.4% d cac thanh pho, 2,7% d viing d6ng bang, va 2% d mien mii, ty Ie m i c dang co xu hudng ngay mdt gia tang [6]. Mgt so nguyen lieu tir thyc vat co tac dyng ho trg phong chong dai thao dudng da dugc su dung theo kinh nghiem dan gian va dugc cac nha khoa hgc nghien Cliu, nhu tra giao cd lam, tra kho qua (mudp dang), tra nu vdi [7], Cd sira co ten khoa hgc la Euphorbia hirta L. thugc hp thau dau (Euphorbiaceae), la cay co, than manh, cao 15-50cm, la co dang hinh triing nhpn, co nhya mii trang, hoa nho nd thanh chiim va ra quanh nam [8]. Thanh phan cac chat co hoat tinh sinh hgc chinh ciia cd sira gdm cd: Flavonoids; Polyphe- nol;Tarmins va cac Triterpenes vaphytos- terol [8], [9], [10]. Tren the gidi, da co KS. Vi?n Dinh duong
^TS. Vien Dinh dudng
V G S . T S . Vien CNSH&CNTP - DHBKHN
Phan bien 1: PGS. TS. Nguyin Thj Lam - Vien Dinh dudng
Phan bien 2: PGS. TS. Nguyen Xuan Ninh - Trung tam Doping va Y hpc the thao Ngay nhan bai: 2/2013
Ngay dang bai: 15/04/2013
T C . D D & T P 9 ( 1 ) - 2 0 1 3 nhieu nghien ciiu trong phong thi nghiem
va tren d6ng v^t ve cac tac dyng ciia cay CO siia trong phdng va chiia benh dai thao dudng [9], [10]. Tai Viet Nam, nhom nghien ciiu ciia tac gia Truang Tuyet Mai ket hgp ciing vdi cac nha khoa hgc Nhat Ban da nghien ciiu budc dau thanh cdng ve kha nang kiem soat dudng huyel ciia tra CO su'a tren phong thi nghiem va tren chugt dai Ihao dudng. Cho den nay, each sii dyng co sii'a thdng thudng ciia ngudi dan Viet Nam la ham nudc, dun soi hoac dun sac la cay co sira kho va uong dan trong ngay. Tren thyc te, nham tang cao tac dung sinh hoa va tang tinh thuan lien khi su dung, can co nghien ciiu thir nghiem ve cam quan, chat lugng cua la cay CO sira dudi nhieu dang che bien va pha che khac nhau. Muc dich ciia nghien Cliu nay la lya chgn cong thiic cho san pham tra co sua thong qua viec danh gia chat lugng va cam quan ciia tra co sira dudi 4 cong thirc vdi 2 each pha che khac nhau de tim ra kieu mau thich hgp nhat ciia tra co sira nham phyc vu cho nhu cau sir dyng tra ho trg phong chong dai thao dudng.
Muc tieu:
1. Danh gia ham lugng polyphenol va chat lugng cam quan ciia tra co sira dudi 4 cong thuc va 2 each pha che khac nhau.
2. Danh gia tinh chap nhan ciia cpng dong doi vdi tra co sii'a.
IIL NGUYEN LIEU VA P H U O N G PHAP N G H I E N c f r u
1. Nguyen lieu:
Co sira kho dat mua tai tinh Binh Duong. Sau khi thu mua, sang say iam sach va dong goi bao quan noi kho rao cho den khi dua vao xay. Tieu chuan; do kho dudi 7% va khdng lan tap chat.
2. ThM gian va dia diem
Dia diem san xuat va dong goi Ihanh phim: Cong ty TNHH Tra Chinh Son, Ha Ngi
Dia diem phan tich chi so Polyphenol va danh gia cam quan: Trung tam Ung dyng Dinh dudng, Vien Dinh dudng.
Thdi gian: tir thang 4/2012-12/2012 3. PhuoTig phap va tien hanh nghien cuu:
3.1. Lya chpn cong thirc tra co siia:
Do dac diem cam quan ciia tra co siia la CO vi chat nhe, mau nudc vang nhat dye, chinh vi vay, chiing toi chpn them cac nguyen lieu co ciing tac dung sinh hpc de dua vao thanh phan xay dung cong thiic tra co sGa. Cac cong thirc de khao sat lua chpn trong NC nay nhu sau:
Cong Ihuc 1 (CTI); thanh phan gom 100%cdsira
Cong thtic 2 (CT2); thanh phan gom 90% CO sua
Cong thtic 3 (CT3): thanh phan gom 80% CO sua
Cong thirc 4 (CT4): thanh phan gom 70% CO sira
3.2.San xuat tra co sua:
Co sua kho, co ngpt kho, nu Voi kho sau khi dugc chgn lya, sang say, cho say kho tai nhiet do 60''C trong 30 phiit. Sir dung may cat nghien, dieu chinh dp md cua 2 ludi dao de xay thanh theo dang nhd hat vdi kich thudc <0,1 mm.
Cac nguyen lieu dugc trpn deu theo ly Ie ciia cong thiic, sau do dong goi dang tui Ipc, moi tili chiia 2g. Tien hanh dong hop vdi so lugng 20 goi/hpp. Cac hop thiet ke so bp ve nhan mac. dua cac thong tin ve san pham: ten san pham, cong dyng, lieu lugng, each dimg, bao quan, noi san xuat, ngay thang san xuat va han sir dung.
3.3. Che bien nu'dc tra co sira Tien hanh che bien 4 cong thtic tra co su:a theo 2 dieu kien: ham trong nudc sol 37
TC.DD&TP 9(1)-2013 Uong 10 philt va dun soi ti-ong 30 phiit. Thu
lay nudc tra co sii'a va ghi ky hipu cho timg ioai. sau do xac djnh ham lu(,mg polyphe- nol, danh gia cam quan ciia timg loai.
3.4. Xac dinh ham lugng Polyphenol cac mau Irii se dugc de trong chai/Ig kin CO dan nhan, so hipu, diing de xac dinh nong do Polyphenol. Ngoai ra mgt sd mau sc dugc bao quan trong tii lanh (nhiet dp lir 2-8''C) trong thdi gian tir 1, 2, 3 ngay, sau do kiem tra sy thay ddi n6ng dp polyphenol. Phuong phap xac dinh nong dp Polyphenol theo phuong phap so mau cua Folin- Ciocalleau, torn tat nhu sau: Cho dinh lugng nong dp polyphenol vao ong nghiem 50yl nudc tra CO sua, hoac dung dich chuan (cale- chin), sau do cho vao 250pl dung dich Folin va 750pl dung djch Na2CO3l0%
va 3ml nudc cat. Lac deu dng nghiem bang may Votex, de tai nhiet dp phong, tranh anh sang trong 2 gid. Do dung djch bang may quang pho lai budc song 765nm. Tinh loan ham lugng polyphenol dua theo dudng chuan cua catechin de tinh lugng catechin (mg) trong 1 ml nudc tra cd sira hoac trong 1 g tra co sira.
3.5. Danh gia cum quan trong phong thi nghiem
Tien hanh danh gia cam quan nudc tra CO siia theo 4 cong thirc va 2 kieu pha che bang phep thii cho diem chat lugng tdng hgp (TCVN 3215-79). Hgi d6ng thir g6m 7 thanh vien dugc lua chgn va tap hudn.
Hpi dong cho diem theo thang 6 bac 5 diem (0 diem img vdi san pham bj hdng, con tir 1 den 5 diem iing vdi miic khuyet tat giam dan) Iren cac tinh chat ciia tra cd sira la mau nudc, miii va vi. Tir cac binh chiia nudc tra cd su:a dugc cho vao cac coc thiiy tinh trong suot khac nhau, c6c dugc ghi theo ky ly de tranh y^u 16 chii quan ciia ngudi tham gia danh gia cam quan. Cac doi tugng ghi lai nhan xet cu 38
thi cho timg mau thii ve mau, miii, vi.
Cgng diim cho tirng mau phieu cam quan, danh gia chung, tdng hgp ket qua cam quan dya tren so phieu danh gia hgp ie. theo diing yeu cau. Diem sd tren phieu cam quan dugc nhan vdi he so trgng lugng cho hing chi lieu: 1,2 cho chi lieu vi mau nudc; 1,2 cho chi lieu ve miii; 1,6 cho chi tieu vi vi; Tong he so trpng lugng ciia tat ca cac chi tieu dugc danh gia cho san pham la 4.
3.6. Danh gia tinh chap nhan ciia cpng dong:
So lugng ngudi danh gia cam quan: 102 ngudi Irudng thanh, tuoi tir 24 den 60 tuoi.
Doi tugng iham gia la nhiing ngudi hien lai khong hiit thudc, khdng mac benh ve mui hpng, co timg uong Ira, khong bi suy giam tri nhd va tu nguyen tham gia.
Dja diem: thanh phd Ha Long, Quang Ninh.
- Mau danh gia: tra cd sira (90% co siia), pha bang each mdi tui lgc 2g/tiii dun sdi vdi 100ml nudc soi trong 30 phiit.
- Cac chi tieu danh gia san pham gom cd chi lieu ve mau sac, miii, vi theo phuong phap chgn miic do yeu thich tir thap den cao (1. Rat thich; 2. thich; 3.
Chap nhan dugc; 4. khong thich; 5. Rat khong thich). Cgng diem cho timg mau phieu cam quan. danh gia chung, long hgp ket qua cam quan dua tren sd phieu danh gia hgp le, theo diing yeu cau. Tinh ty le lua chgn sy yeu thich san pham.
4. Nhap va xu Iy so lieu
Cac so lieu phan tich cam quan, tinh chap nhan va ham lugng polyphenol dugc lam sach va nhap sd lieu bang chuang trinh EPI-INFO 6.0. Xu ly s6 lieu bang phan mim SPSS 16.0.
IV. KET QUA VA BAN LUAN l.Sir khac nhau ve ham Ivong polyphenol va cam quan cua tra co siia dirdl nhieu cong thirc va each pha ch£
T C . D D & T P 9 ( 1 ) - 2 0 1 3 Bdng 1. Hdm lugrng Polyphenol tong sd trong trd cd siia theo tirng thdi gian che bien (tuang duang mg catechin/gram trd)
Cong thirc Ham trong 10 phiit Dun trong 30 phut
CTI 20,1 30,4 20,3 31,2 28,9 31,6 CT4 32.8 33,2 Ket qua bang 1 cho thay ham Iugng dun soi trong 30 phiit thi ham lugng polyphenol d cong thirc co ham Iugng ny polyphenol cua cac cong Ihirc khong khac voi cao thi co ket qua cao. Tuy nhien khi nhau nhieu.
Bdng 2. Hdm luffng polyphenol vd cdm quan cua trd cd sua khi hdm trong 10 phdt Chi tieu CTI CT2 CT3 CT4
Vane, nhat, due nhd Maudonaucanh _ .;. = . . . ;. = lu nuac 1 . ' •. Tuoiie doi sam Mau toi sam
nho gian
Ngai, hoi hac CO miii Tham dju nhe, dac Khong ro miii Dac trung miii dac trung cua co sua trimg miii co sua co sira nu voi
Hai chat, dang nhe Ngpt diu, dang nhe Vj dang Dang, khong thay vj ngpt Polyphenol (mg/g) 20,1
Tong diem chat lupng cam quan Xep thir ty chat lupng chung
Bdng 3. Hdm luffng polyphenol vd cdm quan cua trd cd sOa khi dun sol trong 30 phut Chi tieu
Mau nudc Miii
CTI Vang, due Ngai, h5c dac tnmg mill co sira
CT2 CT3 . , , .. . . Mau toi sam, due, Mau do nau, due .i
lang can Tham nhe, ro miii Khong ro mui co
CO s&a sifa CT4 Mau toi sam, due,
lang can Dac tnmg miii voi Hai chat, khong ^, , .. ^^ . D ** A- ^^^ dang, khong
-.i , Ngpt dm, dang nhe Rat dang .u- • ngpt, dang nhe ^ ^ ^ thay v; ngpt Polyphenol(mg/g) 30,4 31,2 31,6
10,8 12,6 12,2 Tong diem chat
lirgng cam quan Xep thli tu chat
lupng chung 1
39
TC.DD&TP9(1)-2013 Bang 2 va 3 cho th^y CT2 (90% co
sira) cd tdng diim chat Iugng cam quan cao nhat trong s6 4 cong thirc (12,4 diim khi ham trong 10 phiit va 12,6 khi dun d 30 phut). CTI (100% cd sira) cd t6ng diim chat lugng cam quan cung nhu ham lugng pholyphenol trong nudc tra thap nhat. Khi ham 10 phiit, thi ham lugng polyphenol ciia C'r2 khong bang CT3 va CT4, nhung khi dun soi 30 phiit, thi ham lugng polyphenol ciia CT2 cung co ket qua gkn bang CT3 va CT4. Trong ca 2 dieu kien pha che la ham va dun soi, thi CT3 va CT4 lai co mau nudc toi sam, vi hoi dang va khong ro mui co siia, diem cam quan thap hon so vdi CT2. Chinh vi vay chiing toi quyet djnh lya chpn CT2 la cong thiic CO chat lugng chung tot nhat de san xuat thir nghiem tra liii lpc co siia.
Trong nghien ciiu nay, danh gia chat lugng cua 4 cong thirc tra co sii'a vdi 2 kieu pha che da cho thay each dun sol trong 30 phiit da giiip tra co siia dang hat nho chiet tach dugc ham lugng polyphe- nol toi uu nhat, nhieu han so vdi each bam nudc soi. Polyphenol la mpt trong cac thanh phan hoat tinh ciia thyc vat, dugc xem la ihanh phan quan trgng trong khau phan va trong phong cac benh vdi rat nhieu lac dung sinh hgc. Polyphenol chiet tach tir co sii'a co hoat tinh la dgn dep cac goc ty do va phan lu tu do, tac dyng nay da dugc chiing minh tren dng
nghi?m [II]. Hon niia, polyphenol trong cd siia dugc chiing minh cd kha nang kiim soat tang dudng huyet, gdp phan giam cac biin chirng ciia benh dai thao dudng [II]. Cac yeu td nhiet do, thdi gian chiit tach, Ioai dung moi ciing se gop phan anh hudng den lugng polyphenol chiit tach [12]. Trong nghien cuu nay, yiu td thdi gian, phuong phap chiet va yiu td hinh thai san pham dugc lay lam yiu 16 CO ban de so sanh sy khac nhau ve ham lugng polyphenol, trong dieu kien gidng nhau la dung moi - nude thong thudng, la nhiet dp cua nudc soi khi ham.
2.Ket qua ve su* chap nhan cua cpng dong
Bang 4 cho thay ve sy chap nhan cua cgng ddng doi vdi san pham tra cd siia, 88,2% ngudi thir cam quan deu thich mau nudc tra cd sira, 89,2% thich va rat thich mill, 75,5% thich va rat thich vi cua tra co siia. Da sd ngudi Ihu thich mau nudc va miii cua tra co sira vdi ty Ie cpng ddn tir thich den rat thich ciia 2 tinh chat nay la 88,2% va 89,2%. Trong khi dd s6 ngudi thich va rat thich vi ciia tra co siia thap hon (75,5%), nhung ciing chi co 1% so ngudi thu khdng thich vi tra co siia. Nhu vay, xet chung loan dien san pham tra co sira tiii Ipc thi chi co 1 % ngudi thir khong thich, con Iai la chap nhan san pham vdi ty Ie cgng ddn tir ngudi thich den rat thich la 84,3%.
Bdng 4. Ket qud ddnh gid such&p nhdn cua cgng dong
Mlic dp Rat thich Thich Chap nhan Khong thich va rSt khong thich Cpng don tir thich den rat thich
Mau nirdc
% (n) 6,8% (7) 81,4% (83) 11,8% (12)
0%
88,2%
Mill
% (n) 7,8% (8) 81,4% (81)
9,8% (10) I%(1) 89,2%
Vi
%(n) 4,9% (5) 70,6% (71) 23,5% (24) 1%(1) 75,5%
Chung
% (n) 8,8% (9) 75,5% (75) 14,7% (15) 1%(1) 84,3%
40
T C . D D & T P 9 ( 1 ) - 2 0 1 3 c a c ket qua danh gia thi hiiu cua cpng
dong cho thay mau va miii, vj ciia tra co siia (90% cd sua) da dat dugc sy yeu thich cao ciia cpng dong. Viec duy yi mau sac, miii, vi ciia san pham ma khdng can phai bo sung them cac huang lieu phu gia nao khac da mang mgt y nghia quan trpng doi vdi dong tra tu nhien. Nghien ciiu da chi cho thay viec su dyng cac nguyen lieu la thyc vat ty nhien co ciing tac dyng va an toan de ket hgp dugc thanh mgt cong thiic tra CO chat Iugng tot va cam quan tot se cho ra ddi cac san pham tra dap ung dugc thi hieu ciia ngudi lieu diing.
V. KET LUAN
1. Ham Iugng polyphenol chiet tach tir tra CO sira (90% co siia) da cho diem cam quan cao nhat va cho ham Iugng polyphe- nol cao khi dun sdi 30 phut (1,2 mg cale- chin/ml tra hoac tuong duang 31,2 mg calechin/g tra co siia).
2. Co 84,3% ngudi thir thich va rat thich mau, miii va vi ciia tra cd sira pha che theo each dun soi trong 30 phiit.
TAI LIEU THAM KHAO 1. Yoriko,D., etal., (1998). £//ec/-jo/£jc-
tracl of Guava leaves on the develop- ment of Diabetes in the db/db Mouse and on the Postprandial Blood Glucose of Himian subjects. Nippon Nogeika- gaku Kaishi (in Japanese), 72, 923-931.
2. Tsuneki H, Ishizuka M, Terasawa M, Wu JB, Sasaoka T, Kimura I, (2004).
Effect of green tea on blood glucose levels and serum proteomic patterns in diabetic (db/db) mice and on glucose metabolism in healthy humans. BMC Pharmacol, 26, 4-18.
3. Ahmed I, Adeghate E, Cummings E, Sharma AK, Singh J (2004). Beneficial effects and mechanism of action of Mo- mordica charantia juice in the treat- ment of streptozotocin-induced diabetes
melliius in rat. Mol Ceil Biochem., 261, 63-70.
. McDougall GJ, Shapiro F, Dobson P, Smith P, Blake A, Stewart D (2005).
Different polyphenolic componenls of soft fruits inhibited alpha-amylase and alpha-glucosldase. J Agric Food Chem 53:2760-2766.
. Naczk M, Shahidi F (2004). Extraction and analysis of phenolics in food. J ChromatogrA 1054:95-111.
'. Due Son LN, Kusama K, Hung NT, Loan TT, Chuyen NV, Kunii D, Sakai T and Yamamoto S (2004). Prevalence and risk factors for diabetes in Ho Chi Minh City. Vietnam. Diabet Med 2004, 21(4): 371-376.
. http://wWW.sleuthi24h.net/sieu_thi/Tra- n u - v o i - D a i - G i a - g o i - g_product_489_797.com
. Loi DT (2001). Medicinal Plants of Vietnam and Their Biocheniical Prop- erties, 10th ed. Medicine Publisher Hanoi (in Vietnamese).
. Kumar S et al (2010). Anlihyper- glycemic, antihyperlipidemic and an- tioxydant activities of Euphorbia hirta stem extract. International Research Journal of Pharmacy I (1):150-I56.
O.Sunil Kumar etal (2010). Evaluation of antidiabetic activity of Euphorbia hirta Linn, in streptozolocin induced diabetic mice, India Journal of Natural Products and Resources, 1(2):. 200-203.
I.Mai TT, Thu NN, Tien PG and Van Chuyen N (2007). Alpha-glucosidase inhibitory and antioxidant activities of Vietnamese edible plants and their re- lationships with polyphenol contents. J Nutr Sci Vitaminol, 53(3): 267-276.
2.Pinelo M, Rubilar M, Jerez M, Sineiro J, Nunez MJ (2005). Effect of solvent, temperature, and solvent-to-solid ratio on the total phenolic contenl and anti- radical activity of extracts from difler- ent components of grape pomace. J Agric Food Chem 53: 2111-2117.
T C . D D & T P 9 ( 0 - 2 0 1 3 Summary
ASSESSMENT OF POLYPHENOL CONTENT AND THE ACCEPTABILITY OF CO SUA TEA BY FORMULAS AND MAKING STYLES
Co Sua (Euphorbia hirta L.) tea was produced in 4 different formulas and packaged as 2 grams per sachet. Co Sua tea was made by boiling for 30 min or stewing in hot water for 10 min.
Polyphenol content in the Co Sua tea was determined and hedonic test was conducted. Results showed that polyphenol content in the boiled Co Sua tea was higher than the Co Sua tea which was stewed. Co Sua tea that was produced in fomiula 2 (90% Co Sua) had the highest acceptability in terms of color, smell, and taste (>84.3%).
Keywords: Co Sua tea. polyphenol content
/b««d>
XAC DINH THANH PHAN NATRI, KALI, MAGIE VA CALCI TRONG T H U C PHAM B A N G S A C KY ION
Li Hong Ddng', Nguyen Vdn Sy', Phgm Thanh Nga' Muc lieu ciia de tai la chuan hoa ky thuat phan tich Na, K, Ca va Mg trong thyc pham bang ky thuat sac ky ion de xac djnh ham Iugng cac khoang chat nay trong thuc pham. TTiuc pham dugc lya chpn la cac loai thyc pham thong dung chira co s6 li^u cac chSt khoang trong Bang thanh phan diuc phim Viet Nam. Mau thuc pham sau khi vo ca hoa kho dupc hoa tan bSng acid chlorhydric va dinh lupng cac chat khoang bang sac ky trao doi cation. Cac thong so tham dinh gom dp Igp lai, dp thu hoi deu dat yeu cau cua tieu chuan AOAC. Ket qua phan tich 99 mau ciia 33 loai thyc pham se gop phan cap nhat va bo sung vao Bang thanh phSn thyc pham Viet Nam, phue vu cho cac nghien ciiu ve dinh duang va thyc pham.
Tir khoa: chdt khodng,thuc phdm, .sdc ky ion 1. DAT VAN DE
Nhu cau su dung so lieu thanh phdn dinh dudng trong tinh toan khdu phan.
xay dyng che dp an trong dinh dudng dieu tri doi hoi cac so lieu cap nhat, da dang ve chung loai thyc pham va day dii cac Ioai thanh phan dinh dudng. De dap ling nhirng nhu cau dd. Bang thanh phAn thyc pham Viet Nam da dugc bo sung, tai ban qua cac nam 1972. 1995, 2000 va nam 2007 [ I ] . Cac so lieu phan tich tai phong thi nghiem Vien Dinh dudng dugc
sir dyng cho den nay la cac so lieu thanh phan da lugng (protein, chat beo, dp am, tro), mgt so chat khoang nhu canxi. phos- pho, sat, kem, vitamin A, vitamin B1, va gan day la so lieu phan tich cac acid amin, mgt so acid beo va cac carotenoid.
Khi xay dung che do an trong benh vien cho mgt so doi tugng benh nhan mic cac benh man tinh khdng lay nhu gut, tim mach ya tieu dudng, nhirng s6 lieu lien quan den ham lugng naui, kali, magie la het Slic can thiel. Ngoai ra, so lieu thanh phin 'ThS. Vien Dinh dudng
^ThS. Vien Dinh dirdng
^Vien Dinh dirdng
Phan bien 1: PGS. TS. Ha Thj Anh Dao- Vien Dinh duang Phan bien 2: TS. Nguyin Quang Dung-
Vi?n Dinh dudng Ngay nhan bai: 2/2013 Ngay dang bai: 15/04/2013 42
