Perflavory
Typical G.C. analysis
abelmoschus moschatus seed concrete
#%LeftshiftComponents
245.10  ambrettolide
30.07  decanoic acid
9trace  decanol
141.21  decyl acetate
40.18  dodecanoic acid
100.13  dodecanol
151.35  dodecyl acetate
132.16(E,E)- farnesol
120.22(Z,E)- farnesol
231.72(E,E)-farnesyl 16-hydroxyhexadec-7-enoate
1730.90(E,E)- farnesyl acetate
162.25(Z,E)- farnesyl acetate
220.32(E,E)-farnesyl linoleate
180.54(E,E)-farnesyl myristate
214.00(E,E)-farnesyl oleate
192.54(E,E)-farnesyl palmitate
206.84(E,E)-farnesyl stearate
619.08  hexadecanoic acid
110.22(E)- nerolidol
20.10  nonanoic acid
75.29  octadec-9-enoic acid
80.21  octadeca-9,12-dienoic acid
10.07  octanoic acid
51.08  tetradecanoic acid

J. Garnero and P. Buil, Contribution a l’Etude de la Composition Chimique de L’huille Essentielle Concrete de Graines D’Ambrette, Rivista Ital., 60, 606-612 (1978).

P&F 16, No. 5, 75, (1991)

anthemis nobilis flower oil roman
#%LeftshiftComponents
470.48iso amyl 3-hydroxy-2-methylene butyrate
60.93iso amyl acetate
270.07  amyl angelate
2517.54iso amyl angelate
123.13iso amyl isobutyrate
181.53iso amyl methacrylate
110.06iso amyl propionate
320.02  benzaldehyde
440.10  benzyl isobutyrate
400.20  borneol
430.08isobutyl 2-hydroxy-2-methylene butyrate
20.02iso butyl acetate
230.37  butyl angelate
194.03iso butyl angelate
70.04iso butyl butyrate
50.75iso butyl isobutyrate
90.33iso butyl methacrylate
340.03iso butyric acid
40.39  camphene
330.02  camphor
130.121,8- cineole
42tracear- curcumene
460.05para- cymen-8-ol
500.01  decanoic acid
80.08 ethyl angelate
1trace  ethyl isobutyrate
370.10beta- farnesene
300.172-methyl butyl tiglate
220.193- methyl pentanol
480.663-methyl pentyl 3-hydroxy-2-methylene butyrate
140.943- methyl pentyl acetate
3122.693- methyl pentyl angelate
2112.543- methyl pentyl isobutyrate
260.042-methyl pentyl isovalerate
200.102- methyl pentyl propionate
170.152- methyl-2-butenyl isobutyrate
2413.142- methyl-2-propenyl angelate
100.882- methyl-2-propenyl isobutyrate
160.812- methyl-2-propenyl methacrylate
290.802- methyl-2-propenyl tiglate
360.67  myrtenal
450.38  myrtenol
410.05  myrtenyl isobutyrate
490.04  nonanoic acid
280.051- octen-3-ol
31.05alpha- pinene
384.36trans- pinocarveol
352.37  pinocarvone
151.04  propyl angelate
390.03alpha- terpineol

E. J. Brunke, F. J. Hammnerschmidt and G. Schmaus, Flower scent of some traditional medical plants. In: Bioactive volatile compounds from plants. Edits., R. Teranishi, R. G. Buttery and H. Sugisawa, pp. 282-296. ACS Symposium Series No. 525, Amer. Chem. Soc., Washington (1993).

P&F 23, No. 6, 53, (1998)

averrhoa carambola fruit oil cuba
#%LeftshiftComponents
12trace  benzaldehyde
31trace  benzothiazole
52.30  butyl acetate
18tracepara- cymene
37trace  decanoic acid
25trace(Z)-2- decenal
2trace1,1- diethoxyethane
380.101,1- diethoxynonane
27trace  diethyl butane dioate
450.10  dodecanoic acid
40trace  edulan I
550.40(E)-9-eicosene
33trace2- ethoxybenzoic acid
6trace  ethyl (E)-2-butenoate
10.10  ethyl acetate
260.10  ethyl benzoate
4trace  ethyl butanoate
391.90  ethyl decanoate
160.10  ethyl hexanoate
300.10  ethyl octanoate
49trace  ethyl tridecanoate
420.20  ethyl undecanoate
440.10  guaiazulene
531.60  hexadecanoic acid
3trace  hexanal
170.10  hexanoic acid
10trace  hexanol
7trace(E)-2- hexenal
9trace(Z)-2- hexen-1-ol
8trace(Z)-3- hexen-1-ol
410.20(E)-beta- ionone
190.10  limonene
320.10  megastigma-4,6(E),8(Z)-triene
220.10  methyl benzoate
360.10  methyl decanoate
430.10  methyl dodecanoate
14trace  methyl furoate
52trace  methyl hexadecanoate
11trace5- methyl hexanal
24trace  methyl octanoate
15trace6- methyl-5-hepten-2-one
230.20  nonanal
340.10  nonanoic acid
54trace(Z)-9- octadecenoic acid
210.10  octanol
500.10  pentadecanal
28trace  terpinen-4-ol
20tracegamma- terpinene
290.10alpha- terpineol
51trace  tetradecanoic acid
480.10  tetradecanol
470.30  tridecanoic acid
46trace tridecanol
35trace  undecanal
J. of Ess. Oil Res. 12, No. 4, 429, (2000)
cistus oil
#%LeftshiftComponents
60.1  acetophenone
1410.26- acetoxy-11-nor-drim-7-en-9-one
720.27- acetyl-2,2,6-trimethyl bicyclo(4.2.0)octane
1190.16-acetyl-5,8,8-trimethyl bicyclo(3.2.1)octan-2,3-dione
1490.213-nor- ambreinolide
1480.18-epi-13-nor- ambreinolide
780.2alpha- ambrinol
1371.4  ambrox
1440.16-oxo-isoambrox
810.9  aromadendr-1-ene
1350.3  aromadendr-1(10)-en-9-one
911.41,5-(Z)-aromadendr-9-ene
1320.11,10-seco- aromadendran-1,10-dione
1300.15-epi-1,10-seco- aromadendran-1,10-dione
861.5allo- aromadendrene
b30.4  benzoic acid
272.0  borneol
551.7  bornyl acetate
b210.93-iso butenyl-5-methyl-5-vinyl butyrolactone
1260.5  cadalene
980.4delta- cadinene
1250.6alpha- cadinol
1000.6alpha- calacorene
990.6(E)- calamenene
900.5(Z)- calamenene
b91.4gamma-campholenic acid
150.3alpha- campholenic aldehyde
100.3gamma- campholenic aldehyde
b70.3alpha-campholytic acid
b40.2gamma-campholytic acid
b52.4 camphonanic acid
b122.1alpha-camphoneic acid
180.1  camphor
600.8  carvacrol
480.2  carvenone
410.2trans- carveol
430.1cis- carveol
460.5  carvone
1380.1sesqui chamaenol
1171.8  copaborneol
1270.6  copabornyl acetate
741.1alpha- copaene
820.7  cubeb-11-ene
1134.1  cubeban-11-ol
1210.41-epi- cubenol
440.1  cuminaldehyde
b111.0beta- cyclogeranic acid
b80.9gamma-cyclogeranic acid
530.3para- cymen-7-ol
30.4para- cymene
b130.7 davanic acid
390.2  decanal
b203.8  decanoic acid
1060.21,2- dehydroglobulol
1180.33,4- dehydroglobulol
1100.21-epi-3,4- dehydroviridiflorol
1041.41,2- dehydroviridiflorol
1460.214,15- di-nor-8,13-epoxylabd-12-ene
790.1  dihydro-beta-ionene
940.2  dihydroactinidiolide
370.5neo dihydrocarveol
b156.5  dihydrocinnamic acid
b241.7 dimethyl (Z)-2-hexyl-3-methyl butendioic acid
490.22,4- dimethyl acetophenone
91.0alpha-para- dimethyl styrene
970.24,7- dimethyl tetral-1-one
b141.22,6- dimethyl-5-oxoheptanoic acid
770.2  dodecanal
700.111-nor- drim-7-ene
1390.1  drim-8-en-7-one
690.211-nor- drim-8-ene
1010.311-nor- driman-8-ol
1020.2beta- elemol
351.3  elsholtzia ketone
1360.25,11- epoxycadin-1(10)-en-9-ol
1080.85,11-epoxycadin-1(10)-ene
80.86,8- epoxymenth-1-ene
640.1  ethyl dihydrocinnamate
1240.4beta- eudesmol
1220.2gamma- eudesmol
651.6  eugenol
450.2alpha- fenchyl acetate
760.11-( fur-2-yl methyl)-2-formyl pyrrole
b192.4  geranic acid
510.2  geraniol
800.1  geranyl acetone
1090.5  gleenol
1110.2  globulol
b20.5  heptanoic acid
b10.7  hexanoic acid
1330.1(Z)-3-hexen-1-yl dihydrocinnamate
1340.3  hexyl dihydrocinnamate
590.1(2E,4E)-6-hydroxy-2,6-dimethyl hepta-2,4-dienal
32trace2- hydroxy-3-methyl benzaldehyde
660.22- hydroxy-4-isopropenyl toluene
680.2(E)-5-hydroxy-para-mentha-1(6),8-dien-2-one
710.3(Z)-5-hydroxy-para-mentha-1(6),8-dien-2-one
1400.110- hydroxycalamene-8,9-epoxide
1310.19- hydroxyladanifer-10-one(9(10(1))-abeo-9-hydroxyaromadendran-10-one)
500.42- hydroxypinan-3-one
870.2(E)-beta- ionone
1420.615-nor-labd-1(17)-ene
1530.4  labd-7-en-15-ol
1450.515-nor- labd-7-ene
b316.3 labd-7-enoic acid
1540.3  labd-8-en-15-ol
1430.515-nor-labd-8-ene
b324.0 labd-8-enoic acid
1520.4  labd-8(17)-en-15-ol
b305.1 labd-8(17)-enoic acid
1470.715-nor-labdan-8-ol
b232.5  lauric acid
929.3  ledene
730.2iso ledene
1161.3  ledol
120.2  linalool
70.4(E)- linalool oxide furanoid
110.2(Z)- linalool oxide furanoid
b281.0  linoleic acid
1500.3  manoyl oxide
1510.313-epi- manoyl oxide
850.1  massoia lactone
400.3(Z)-para- menth-4(8)-en-2-ol
620.12- methoxy-6-methyl acetophenone
290.3para- methyl acetophenone
521.0  methyl dihydrocinnamate
750.4  methyl eugenol
10.25- methyl furfural
20.16- methyl-5-hepten-2-one
1200.3  muurola-4,10(14)-dien-1-ol
1230.3alpha- muurolol
b252.7  myristic acid
330.9  myrtenal
b186.0  myrtenic acid
361.5  myrtenol
581.1  naginata ketone
220.2  nerol oxide
1030.2(E)- nerolidol
130.1  nonanal
b101.6  nonanoic acid
170.7(E)-3- nonen-2-one
b63.7  octanoic acid
b271.2  oleic acid
1150.1beta- oplopenone
b265.1  palmitic acid
1051.2  palustrol
1290.1  pentadecanal
420.13- phenyl propanol
231.5  pinocamphone
280.7iso pinocamphone
191.8trans- pinocarveol
240.3  pinocarvone
630.4trans- pinocarvyl acetate
470.8  piperitone
250.1  propiophenone
1280.24-iso propyl-6-methyl tetral-1-one
160.1(E)- rose oxide
140.2(Z)- rose oxide
200.1(E)- sabinol
b290.8  stearic acid
210.2(E)- tagetone
260.2(Z)- tagetone
310.8  terpinen-4-ol
340.5alpha- terpineol
1140.1  tetradecanal
890.61,1,5,6- tetramethyl-1,2-dihydronaphthalene
950.21,1,5,6- tetramethyl-1,2,3,4-tetrahydronaphthalene
540.2  thymol
1070.26-para-tolyl heptan-2-one
880.1  tridecanal
b160.71,5,5-trimethyl bicyclo(4.1.0)heptan-7-carboxylic acid A
b171.91,5,5-trimethyl bicyclo(4.1.0)heptan-7-carboxylic acid B
50.32,2,6- trimethyl cyclohex-2-enone
41.32,2,6- trimethyl cyclohexanone
930.21-(1,2,2- trimethyl cyclopent-1-yl) pentan-1,4-dione
960.26,6,10-trimethyl decan-2-one
300.52,2,5- trimethyl oxepan-4-one
670.21,1,6- trimethyl-1,2-dihydronaphthalene
830.14,4,7a- trimethyl-1,4,5,6,7,7a-hexahydro-2H-inden-2-one
840.1  tuberolactone
610.2  undecanal
b220.3  undecanoic acid
380.3  verbenone
1124.3  viridiflorol
560.2  vitispirane A
570.1  vitispirane B

P. Weyerstahl, H. Marschall, M. Weirauch, K. Thefeld and H. Surburg, Constituents of commercial labdanum oil. Flav. Fragr. J., 13, 295-318 (1998).

P&F 24, No. 4, 31, (1999)

citrus aurantium peel oil
#%LeftshiftComponents
430.10delta- cadinene
42tracegamma- cadinene
280.02  carvacrol
200.05  carveol
220.03  carvone
380.03beta- caryophyllene
150.01  citronellal
210.07  citronellol
360.05alpha- copaene
33tracealpha- cubebene
400.36beta- cubebene
60.52para- cymene
190.10  decanal
340.03  decanoic acid
37tracebeta- elemene
310.01delta- elemene
410.04gamma- elemene
44trace  elemol
25trace  geranial
35trace  geranyl acetate
390.02alpha- humulene
786.36  limonene
131.91  linalool
100.16(E)- linalool oxide furanoid
110.08(Z)- linalool oxide furanoid
51.83  myrcene
16trace  naphthalene
230.04  nerol
450.02  nerolidol
320.03  neryl acetate
80.24(E)-beta- ocimene
260.01  perillaldehyde
290.01  perillyl alcohol
21.17alpha- pinene
40.63beta- pinene
240.02iso piperitenone
30.07  sabinene
170.20  terpinen-4-ol
94.25gamma- terpinene
180.24alpha- terpineol
140.02beta- terpineol
120.21  terpinolene
10.22alpha- thujene
270.12  thymol
30trace  undecanal

M-B. Huang, D-X. Zhang, C-T. Yan and S-B. Yang, Identification and determination of the constituents of essential oil extracted from Fructus Citri aurantii by GC and GC/MS. Sepu, 8, 321-325 (1990).

P&F 25, No. 2, 46, (2000)

citrus x latifolia oil expressed
#%LeftshiftComponents
330.8alpha- bergamotene
52trace(E)-alpha- bisabolene
480.8beta- bisabolene
68tracealpha- bisabolol
25trace  borneol
32trace  bornyl acetate
690.1alpha- cadinol
30.1  camphene
6tracedelta-3- carene
350.3beta- caryophyllene
73trace  cinnamic alcohol
220.1  citronellal
40trace  citronellyl acetate
19tracealpha- cubebene
27tracebeta- cubebene
150.1para- cymene
240.1  decanal
72trace  decanoic acid
61trace(E)-2- dodecen-1-ol
340.1beta- elemene
210.1delta- elemene
37tracegamma- elemene
67tracegamma- eudesmol
500.2(E,E)-alpha- farnesene
410.1(E)-beta- farnesene
71trace(E,E)- farnesyl acetate
492.3  geranial
58trace  geraniol
511.0  geranyl acetate
45trace  geranyl formate
560.1  germacrene B
460.1  germacrene D
70trace  heptadecanal
650.1  hexadecanal
42tracealpha- humulene
1052.2  limonene
260.2  linalool
30trace  linalyl acetate
59tracepara- mentha-1,8-dien-10-yl acetate
38trace(E)-para- mentha-2,8-dien-1-ol
71.3  myrcene
431.2  neral
62trace(E)- nerolidol
471.4  neryl acetate
18trace  nonanal
310.1  nonyl acetate
14trace(E)-beta- ocimene
12trace(Z)-beta- ocimene
74trace  octadecanal
17trace  octanal
29trace  octanol
23trace  pentadecane
54trace  perillaldehyde
60trace  perillyl acetate
8tracealpha- phellandrene
11tracebeta- phellandrene
53tracebeta-sesqui phellandrene
23.2alpha- pinene
413.0beta- pinene
57traceiso piperitenone
52.0  sabinene
200.1(E)- sabinene hydrate
280.1(Z)- sabinene hydrate
39tracebeta- santalene
64trace  spathulenol
90.3alpha- terpinene
1317.0gamma- terpinene
440.4alpha- terpineol
160.7  terpinolene
55trace  tetradecanal
1tracealpha- thujene
66trace  thymol
36trace  undecanal
75trace  undecanoic acid
63trace  viridiflorol

S. M. Njoroge, H. Ueda, H. Kusunose and M. Sawamura, Japanese sour citrus fruits Part IV. Volatile compounds of Naaoshichi and Tahiti lime essential oils. Flav. Fragr. J., 11, 25-29 (1996).

P&F 24, No. 2, 35, (1999)

dialium guineense wild.fruit oil france
#%LeftshiftComponents
111.50  decanal
162.20  decanoic acid
125.60  dodecane
2010.50  dodecanoic acid
180.50  geranyl acetone
237.00  heptadecane
82.20  heptanoic acid
216.30  hexadecane
10.30  hexanoic acid
66.10  linalool
31.10(E)- linalool oxide furanoid
21.90(Z)- linalool oxide furanoid
94.90  methyl salicylate
130.302- methyl-4-vinyl phenol
512.50  nonanal
1411.40  nonanoic acid
40.70  octanol
194.80  pentadecane
220.302- pentadecanone
102.00alpha- terpineol
174.60  tetradecane
155.80  tridecane
73.90  undecane
J. of Ess. Oil Res. 13, No. 2, 103, (2001)
helichrysum arenarium l. moench oil hungary
#%LeftshiftComponents
53.20  anethole
70.30para- anisaldehyde
211.50beta- asarone
160.70delta- cadinene
113.60  carvacrol
41.10  carvone
180.30 caryophylla-2(12),6-dien-5-ol
90.60beta- caryophyllene
60.20  copaene
159.80  decanoic acid
1911.90  dodecanoic acid
130.40  eugenol
221.40  globulol
170.10alpha- gurjunene
120.50alpha- humulene
11.70  linalool
2328.50  methyl palmitate
140.10gamma- muurolene
201.30alpha- muurolol
86.90  nonanoic acid
36.00  octanoic acid
21.80alpha- terpineol
100.60  thymol
J. of Ess. Oil Res. 12, No. 6, 728, (2000)
osmanthus fragrans flower absolute
#%LeftshiftComponents
960.04  amyl benzoate
320.03  amyl butyrate
360.008  amyl isovalerate
104trace  amyl salicylate
800.06  anethole
1070.003  anisyl acetate
510.19  benzaldehyde
700.08  benzyl acetate
870.19  benzyl alcohol
86trace  benzyl butyrate
500.02  benzyl formate
590.16  bornyl acetate
15trace  butanal
31trace  butyl benzene
210.02  butyl butyrate
950.12  butyl phenyl acetate
62trace  butyric acid
8trace  camphene
52trace  camphor
16tracedelta-3- carene
119trace  carvacrol
71trace  carvone
200.301,8- cineole
75trace  citronellol
103tracemeta- cresol
102tracepara- cresol
26tracepara- cymene
113tracedelta- decalactone
10611.70gamma- decalactone
29trace  decanal
1170.05  decanoic acid
749.20  decanol
660.08  decyl acetate
1300.39  dibutyl phthalate
84trace  dihydrojasmone
890.282,6- dimethyl phenol
1110.03  docosane
1240.21gamma- dodecalactone
490.05  dodecanal
970.04  eicosane
20.06  ethyl acetate
130.02  ethyl benzene
430.03  ethyl decanoate
220.004  ethyl hexanoate
101trace  ethyl myristate
77trace  ethyl salicylate
1081.90  eugenol
1210.02(E)-iso eugenol
1140.02(Z)-iso eugenol
1200.18  farnesol
45trace  furfural
72trace  geranial
830.07  geraniol
73trace  geranyl acetate
680.08 geranyl formate + dodecanal
105trace  heneicosane
17trace  heptanal
94trace  heptanoic acid
90.022-heptanol + hexanal
38trace  heptyl acetate
330.01  heptyl formate
88trace  heptyl isovalerate
370.01  hexanal
810.05  hexanoic acid
390.12(Z)-3- hexen-1-ol
42trace  hexyl butyrate
35trace  hexyl propionate
1100.007  hexyl salicylate
53trace  hexyl valerate
820.86alpha- ionone
925.85beta- ionone
116trace  jasmolactone
930.02(Z)- jasmone
1280.02  lauric acid
18trace  limonene
552.36  linalool
4414.60(E)- linalool oxide furanoid
4621.10(Z)- linalool oxide furanoid
56trace  linalyl acetate
910.07 methyl alpha-ionone + quinoline
190.053- methyl butanol
60trace  methyl decanoate
118trace  methyl dihydrojasmonate
780.03  methyl dodecanoate
58trace5- methyl furfural
480.09  methyl nonanoate
1270.16  methyl oleate
1120.07  methyl palmitate
340.022- methyl-2-hepten-6-one
4trace4-methyl-2-pentenol
14trace4- methyl-3-penten-2-one
1310.03  myristic acid
990.21  nerolidol
980.04gamma- nonalactone
400.11  nonanal
630.70  nonanol
1000.11  octanoic acid
570.02  octanol
28trace2- octanone
47trace  octyl acetate
690.02  octyl valerate
1320.71  palmitic acid
30.003  pentanal
24trace pentenal
79trace2- phenethyl acetate
900.192-phenethyl alcohol + nonadecane
760.012- phenethyl formate
65trace  phenyl acetaldehyde
5tracealpha- pinene
11tracebeta- pinene
1trace  propanal
70.01  propanol
540.02  propionic acid
12trace  sabinene
850.02  safrole
1220.03alpha- santalol
1260.02beta- santalol
25trace  styrene
610.06  terpinen-4-ol
230.20gamma- terpinene
670.07alpha- terpineol
270.06  terpinolene
1250.02  tetracosane
41trace  tetradecane
1090.23  thymol
6trace  toluene
30trace  tridecane
115tracegamma- undecalactone
100.008  undecane
1233.10  undecanoic acid
64traceiso valeric acid
1290.08  vanillin
V. T. Cogiya, L. G. Kharebava, R. V. Gogiya and E. B. Gvatua, Composition of the volatile compounds in flowers of Osrnanthus fragrans (Thumb) Lour. Rastit. Resur., 22, 243-248 (1986). P&F 17, No. 3, 61, (1992)
sugandha kokila berry oil
#%LeftshiftComponents
310.40  aromadendrene
260.70alpha- bergamolene
421.10beta- bisabolene
452.90delta- cadinene
500.10alpha- calacorene
470.30  calamenene
30.10  camphene
221.50  camphor
601.30  capric acid
580.40  carvacrol
297.40beta- caryophyllene
520.70  caryophyllene oxide
1113.101,8- cineole
204.70alpha- copaene
190.70alpha- cubebene
490.10para- cymen-8-ol
163.60para- cymene
270.30beta- elemene
590.20  elemicin
440.50  geranial
480.20  geraniol
351.30alpha- humulene
622.70  lauric acid
90.50  limonene
232.80  linalool
240.10(E)-para- menth-2-en-1-ol
320.10(Z)-para- menth-2-en-1-ol
570.20para-menth-5-en-1,2-ol
5413.70(E)- methyl cinnamate
510.20(Z)- methyl cinnamate
530.60  methyl eugenol
560.40(E)- methyl isoeugenol
460.20  methyl laurate
60.40  myrcene
612.50  myristicin
370.30  neral
410.30  neryl acetate
210.202- nonanol
181.902- nonanone
140.20(E)-beta- ocimene
120.05(Z)-beta- ocimene
71.50alpha- phellandrene
101.40beta- phellandrene
11.20alpha- pinene
41.90beta- pinene
50.80  sabinene
252.10alpha- santalene
340.80beta- santalene
330.10epi-beta- santalene
430.60alpha- selinene
401.00beta- selinene
550.50  spathulenol
150.10  styrene
304.00  terpinen-4-ol
80.40alpha- terpinene
130.60gamma- terpinene
386.60alpha- terpineol
360.40delta- terpineol
170.30  terpinolene
20.30alpha- thujene
390.012- undecanol
283.602- undecanone

S. R. Adhikary, B. S. Tuladhar, A. Sheak, T. A. van Beek, M. A. Posthumus and G. P. Lelyveld, investigation of Nepalese essential oils. 1. The oil of Cinnamomum glaucescens (Sugandha kokila). J. Essent. Oil Res. 4, 151-159 (1992).

P&F 22, No. 6, 45, (1997)

Top of Page Home
Copyright © 1980-2021 Perflavory ™ Disclaimer Privacy Policy