东北林业大学学报
東北林業大學學報
동북임업대학학보
Journal of Northeast Forestry University
2015年
9期
41-44
,共4页
杨喜%刘杏娥%杨淑敏%田根林%马建峰
楊喜%劉杏娥%楊淑敏%田根林%馬建峰
양희%류행아%양숙민%전근림%마건봉
梁山慈竹%化学成分%竹龄%竹高部位
樑山慈竹%化學成分%竹齡%竹高部位
량산자죽%화학성분%죽령%죽고부위
Dendrocalamus farinosus%Chemical composition%Bamboo age%Culm height
对梁山慈竹综纤维素、α-纤维素、木质素、聚戊糖、苯醇抽出物、冷水抽出物、热水抽出物、1%NaOH抽出物和灰分等9个化学成分指标及其随竹龄和竹高部位的变化情况进行了系统的研究。结果表明:梁山慈竹从2年生至5年生,综纤维素和4种抽出物质量分数表现减小的趋势;α-纤维素变化幅度极小;木质素和聚戊糖表现增大趋势,4年生时达到最大。除α-纤维素外,其他8项化学组分在4个竹龄上均表现极显著差异。基部综纤维素、α-纤维素和4种抽出物质量分数最高,木质素和聚戊糖质量分数最低。上部则完全相反,中部各化学成分质量分数居中。除α-纤维素和苯醇抽出物外,其他7项化学组分在竹高部位上均无显著性差异。梁山慈竹的综纤维素和α-纤维素质量分数低于硬头黄竹,略高于龙竹、撑绿杂交竹和车筒竹;4种抽出物和灰分质量分数略高于硬头黄竹,低于其他3种丛生竹。
對樑山慈竹綜纖維素、α-纖維素、木質素、聚戊糖、苯醇抽齣物、冷水抽齣物、熱水抽齣物、1%NaOH抽齣物和灰分等9箇化學成分指標及其隨竹齡和竹高部位的變化情況進行瞭繫統的研究。結果錶明:樑山慈竹從2年生至5年生,綜纖維素和4種抽齣物質量分數錶現減小的趨勢;α-纖維素變化幅度極小;木質素和聚戊糖錶現增大趨勢,4年生時達到最大。除α-纖維素外,其他8項化學組分在4箇竹齡上均錶現極顯著差異。基部綜纖維素、α-纖維素和4種抽齣物質量分數最高,木質素和聚戊糖質量分數最低。上部則完全相反,中部各化學成分質量分數居中。除α-纖維素和苯醇抽齣物外,其他7項化學組分在竹高部位上均無顯著性差異。樑山慈竹的綜纖維素和α-纖維素質量分數低于硬頭黃竹,略高于龍竹、撐綠雜交竹和車筒竹;4種抽齣物和灰分質量分數略高于硬頭黃竹,低于其他3種叢生竹。
대량산자죽종섬유소、α-섬유소、목질소、취무당、분순추출물、랭수추출물、열수추출물、1%NaOH추출물화회분등9개화학성분지표급기수죽령화죽고부위적변화정황진행료계통적연구。결과표명:량산자죽종2년생지5년생,종섬유소화4충추출물질량분수표현감소적추세;α-섬유소변화폭도겁소;목질소화취무당표현증대추세,4년생시체도최대。제α-섬유소외,기타8항화학조분재4개죽령상균표현겁현저차이。기부종섬유소、α-섬유소화4충추출물질량분수최고,목질소화취무당질량분수최저。상부칙완전상반,중부각화학성분질량분수거중。제α-섬유소화분순추출물외,기타7항화학조분재죽고부위상균무현저성차이。량산자죽적종섬유소화α-섬유소질량분수저우경두황죽,략고우룡죽、탱록잡교죽화차통죽;4충추출물화회분질량분수략고우경두황죽,저우기타3충총생죽。
We studied the chemical compositions of holocellulose , α-cellulose, lignin, pentosan, benzene-alcohol extractive, water extractive , hot-water extractive , 1%of NaOH extractive and ash in Dendrocalamus farinosus, and their variations with bamboo age and culm height .The content of holocellulose decreased from two-to five-year old with no significant difference in α-cellulose , nevertheless significant difference in remaining compositions between five-year bamboos .Lignin and pentosan increased to four-year old and then falling with extreme value at four-year old, oppositely four kinds of extrac-tives and ash were slightly decreased to four-year-old and then increased .Along culm height, the contents of four kinds of extractives in base position reached maximum as well as holocellulose and α-cellulose , while lignin and pentosan at the minimum .The contents of chemical compositions in upper position were just opposite to the base , middle position with al-most medium .There were significant differences in α-cellulose and benzene-alcohol extractives among three culm positions at 0.01 level.Holocellulose content in D.farion sus was lower than that in Bamb usar igida, and a little higher than that in B amdusa pervariadil s×Grandis Nin, D.giganteus, and Bambusa sinospinosa.Four kinds of extractives and ash in D.fari-nosus were slightly higher than those in Bambusa rigid, but lower than those in other three sympodial bamboos .