After ultra high pressure treatment, limonene concentration was decreased greatly while myrcene and α-pinene concentrations were not changed significantly and the concentration of limonene was decreased by 75% after high pressure treatment of 500 MPa for 15 min,α-terpineol and carvone concentrations were increased significantly. The aldehydes concentrations were retained well. The ester concentrations were changed under high pressure treatment, but generally their concentrations were not changed remarkably.

通過定量檢測分析發(fā)現(xiàn)：超高壓處理對橙汁中的檸檬烯成分影響很顯著射欧美综合，經(jīng)500 MPa的壓力處理15 min后其含量下降了75%好男人社区WWW在线资源，而月桂烯和α-蒎烯受高壓影響較小久操B；α-松油醇中国产XXXXA片免费视频软件、香芹酮含量經(jīng)高壓處理后迅速增加；醛類特征香氣成分基本不受高壓影響国产JIZZ在线观看；酯類成分在高壓下會發(fā)生變化熟妇精品视频，但總體變化不顯著。

Amino-6-methoxy Benzothiazole 99%人人操五月肥妇、2-Amino Benzothiazole 99%91精品啪中文字幕、Veratraldehyde 99%、Veratric Acid 99%欧美美熟妇激情一区二区三区在线、1,2- Dimethoxy Benzene 99%黄片对白3qA片对白3p、6-Nitroveratric Acid 97%、2,5-Dichlorobenzoic Acid 99%久久精品国产99国产精2020丨、4-Chloro-3-Nitrobenzoic Acid 99%毛黄视频、 3-Nitrobenzole Acid 98%、p-Methoxybenzoie Acid 99%丁香五月人人妻人人爽、Anisole 99.5%谁有黄色网站免费、p-Methoxyacetophenonc 99%、(2'-Chloroethyl) Benzene 99%在线观看黄片免费观看、(2'-Bromoethyl) Benzene 99%www插插插99、N,N-Diethyi-m-Toiuamide 99%、Aminoacetonitrile Hydrochloride 98%亚洲狠狠艹、 Alkyl Diphenyl Phosphate Estrel 98%午夜肥婆、5-Chloro-2-benzothiazolone 99%、6-bromo-2-naphthol 98%亚洲男人的天堂网址、6-Nitro-Veretric Acid Estrel 97%黄色网站黄色毛片、4-chloro phenoxyaeetic 99

2-氨基-6-甲氧基苯駢噻唑、2-氨基苯駢噻唑、藜蘆醛欧美在线VAV、藜蘆酸免费观看18禁网站入口、藜蘆醚、6-硝基藜蘆酸男人天堂黄色网址、2一级又大爽又黄的免费毛片，5-二氯苯甲酸、3-硝基-4-氯苯甲酸国产在线中心com、3-硝基苯甲酸草女人网站、對甲氧基苯甲酸、苯甲醚午夜福利欧美性爱、對甲氧基苯乙酮欧爱爱爱网、β-氯代苯乙烷、β-溴代苯乙烷2av天堂网在线观看、N网站黄se，N-二乙基間甲苯甲酰胺、氨基乙腈鹽酸鹽亚洲va成无码人在线、磷酸二苯月桂酯国产在线无码制服丝袜无码知名国产、5-氯-2-苯駢噻唑酮、6-溴-2-萘酚黄色网站久久影院、6-硝基藜蘆酸甲酯360毛片视频AA、4-氯苯氧乙酸

Furoin was synthesized from furol with VB1 as the catalyst,which was then reacted with acetyl chloride, lauroyl chloride ,benzoyl chloride,α-furoyl chloride and 3-α-furyl acryloyl chloride,respectively;corresponding monoester compounds of furoin were synthesized in THF in the presence of sodium hydroxide under reflux.

以糠醛為基礎(chǔ)原料，經(jīng)維生素B1催化合成糠偶姻黄色网站在线浏览观看，再由糠偶姻分別和乙酰氯男女猛烈无遮挡羞羞视频、月桂酰氯、苯甲酰氯亚州艳情网站、α-呋喃甲酰氯和3-α-呋喃烯丙酰氯反應(yīng)日韩在线主播福利影院AV，在NaOH/無水THF體系中，于水浴回流條件下合成了相對應(yīng)的糠偶姻單酯類化合物国产小视频在线播放。

The DielsAlder reaction of myrcene and acrolein over ZnCl2/NaY prepared by solidstate interaction under microwave irradiation, conventional heating physical mixture, and over ZnNaY prepared by ion exchange in solution was studied.

比較了微波固相法亚洲图库日韩在线专区、普通加熱法和簡單混合法制備的ZnCl2／NaY及溶液離子交換法制備的ZnNaY在月桂烯與丙烯醛DielsAlder反應(yīng)中的催化性能，發(fā)現(xiàn)微波固相法制備的催化劑表現(xiàn)出最高的環(huán)加成選擇性和區(qū)域選擇性免费Aⅴ无遮拦日本在线观看。

Linear dimerization of isoprene to form myrcene ;2. Synthesis of Unsaturated Cyclothioethers byCycloaddition Reactions of Myrcene;3. The traditional synthesis is by the way of Diels-Alder reaction of myrcene with acrolein over Lewis acid catalysts in organic solvent.

二烷基咪唑或烷基吡啶鹵化物與ZnCl2 構(gòu)成一類新型的具有Lewis酸性的離子液體狂野欧美，以其為催化劑和反應(yīng)介質(zhì)，通過月桂烯與丙烯醛的Diels Alder反應(yīng)高區(qū)域選擇性地合成了對位柑菁醛视色在线。

Microwave irradiation ; solidstate interaction ; zinc chloride ; NaY zeolite ; myrcene ; acrolein ; DielsAlder reaction ; myrac aldehyde

微波輻射色色色色色色色色色人人人；固態(tài)作用；氯化鋅农村妇女一级特黄大片； NaY分子篩性生活黄色视频欧美；月桂烯；丙烯醛黄色视频高清免费无码； Diels-Alder反應(yīng)图片区小说区中文；柑菁醛

Samples were subjected to high pressure ranging from 100 to 500 MPa. After high pressure treatments, the flavour compounds were extracted by Solid-Phase Microextraction. Analysis was carried out by Gas Chromatography-Mass Spectrometry. The key flavour compounds of orange juice were three alkenes (namely limonene, myrcene and α-pinene), two alcohols (linalool and α-terpineol), three aldehydes, one ketone and two esters (ethyl butyrate and 3-OH-ethyl hexanoate).

采用固相微萃取（Solid Phase Microextraction毛片黄色黄片.COM，SPME）方法對不同壓力（100～500 MPa）超高壓處理的鮮榨橙汁中的香氣成分進行富集www.色色网站，并經(jīng)氣相色譜-質(zhì)譜聯(lián)用儀（Gas Chromatography-Mass Spectrometry，GC-MS）檢測分析91視频免费看，橙汁中的主要香氣成分有：3種烯（檸檬烯三级在线視頻、月桂烯、α-蒎烯）日本强伦姧人妻网站；2種醇天天三级视频；3種醛；1種酮可乐无码Aⅴ在线视频；2種酯（丁酸乙酯一级乱伦黄片、3-OH-己酸乙酯），它們是構(gòu)成橙汁的主要特征致香成分亚洲性爱中文字幕视频。

Dimethyloldodecanoic acid was synthesized using lauric aldehyde ,formaldehyde and hydrogen peroxide as regents through aldol condensation and oxidation reactions.

研究了以月桂醛免费观看黃色A片一级视频国产、甲醛、過氧化氫為原料在线免费A片黄片，經(jīng)羥醛縮合99re6在线视频精品免费大秀、過氧化氫氧化合成2，2-二羥甲基十二酸的方法国产福利大尺度写真在线观看，探討了原料摩爾比欧美大肥婆性视频、催化劑或氧化劑用量、反應(yīng)溫度和時間對羥醛縮合反應(yīng)和氧化反應(yīng)的影響三级片色一区二区三区日本人,。

Reaction of citric acid with paraformaldehyde gave anhydromethylene citric acid with a yield of 63%;the reaction of compound with acetic anhydride gave the corresponding anhydride with a yield of 87%;the esterification of compound with lauryl alcohol gave anhydrocitric acid monoester with a yield of 76%.

將等濃度的檸檬酸和多聚甲醛加熱插插国产视频，反應(yīng)生成檸檬酸縮醛環(huán)酯，產(chǎn)率為63%国产真实激情在线观看电影视频；與乙酸酐反應(yīng)得到相應(yīng)的檸檬酸酐久久精品福利第一区，產(chǎn)率為87%；與月桂醇酯化国产综合久久精品综合AV无码，生成產(chǎn)物在线观看春药毛片，產(chǎn)率為76%；用二氧六環(huán)做溶劑91亚色视，將與等濃度的堿進行開環(huán)反應(yīng)黄色免费在线国产，生成檸檬酸月桂醇單酯，產(chǎn)率為83%欧美综合亚洲日韩精品区换脸。

dodecanoic acid; lauric acid：十二[烷]酸,月桂酸

十二碳二烯酸 dodecadienoic acid | 十二醛,月桂醛 dodecanal, lauryl aldehyde | 十二[烷]酸,月桂酸 dodecanoic acid, lauric acid

lauric acid; dodecanoic acid：月桂酸; 十二酸

月桂酸鹽;月桂酸酯 laurate | 月桂酸; 十二酸 lauric acid; dodecanoic acid | 月桂醛;十二醛 lauric aldehyde; lauraldehyde; dodecanal

lauraldehyde：月桂醛

揮發(fā)油成分含癸酰乙醛(魚腥草素, decanoylacetaldehyde)及月桂醛(lauraldehyde)等, 魚腥草的特殊氣味與癸酰乙醛有關(guān). 癸酰乙醛性質(zhì)不穩(wěn)定,易聚合,人工合成了其亞硫酸氫鈉加成物,即合成魚腥草素. 黃酮類有槲皮素(querceitrin)、異槲皮素、槲皮苷等.

lauraldehyde：月桂醛 十二醛

lauralcherry 桂櫻 | lauraldehyde 月桂醛 十二醛 | lauramide 月桂酰胺

dodecanal; lauraldehyde：十二醛;月桂醛

二環(huán)己基胺 dodecahydrodiphenyl-amine; dicyclohexylamine | 十二醛;月桂醛 dodecanal; lauraldehyde | 十二烷 dodecane

lauraldehyde; lauric aldehyde：月桂醛;十二醛

勞丹辛;N-甲四氫罌粟堿 laudanosine | 月桂醛;十二醛 lauraldehyde; lauric aldehyde | 月桂酰胺;十二酰胺 lauramide

lauric aldehyde; lauraldehyde; dodecanal：月桂醛;十二醛

月桂酸; 十二酸 lauric acid; dodecanoic acid | 月桂醛;十二醛 lauric aldehyde; lauraldehyde; dodecanal | 甘油三月桂酸酯;月桂脂 laurin

laurate：月桂酸鹽;月桂酸酯

月桂酸鹽;月桂酸酯 laurate | 月桂酸; 十二酸 lauric acid; dodecanoic acid | 月桂醛;十二醛 lauric aldehyde; lauraldehyde; dodecanal

laurin：甘油三月桂酸酯;月桂脂

月桂醛;十二醛 lauric aldehyde; lauraldehyde; dodecanal | 甘油三月桂酸酯;月桂脂 laurin | 月桂烯酸 lauroleic acid

Myrcene：月桂烯

蕺菜俗稱魚腥草,有特殊氣味,微毒,全草含揮發(fā)油,油中含抗菌成分魚腥草素(即癸酰乙醛)66jb影院是什么、甲基正壬基酮欧美欧美一区、 月桂烯(myrcene)、月桂醛(lauricaldehyde)亚洲国产青春福利、癸醛性爱在线视频不卡酷酷网、癸酸,尚含蕺菜堿(cordarine)等,花穗、 果穗含異槲皮苷(isoquercitrin),