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Articles by Juhani Paakkanen

Category : Article

article id 5009, category Article

Risto-Veikko Pätiälä, Kari Blomberg, Juhani Paakkanen, Sulo Piepponen. (1978). Havaintoja raudus- ja visakoivun mahlan sokeripitoisuudesta. Silva Fennica vol. 12 no. 4 article id 5009. https://doi.org/10.14214/sf.a14863

English title: Carbohydrates in the sap of silver birch and its curly grained form.

Original keywords: rauduskoivu; visakoivu; sokerit; mahla

English keywords: Betula pendula; Betula pendula var. carelica; sap; carbohydrates; sorbitol

Abstract | View details | Full text in PDF | Author Info

Carbohydrates of the sap of six curly and four silver birches (Betula pendula f. carelica Sok. and B. pendula Roth) were analysed by gas chromatography as trimethylsilyl derivates both from hydrolysed and unhydrolyzed samples. Sorbitol was identified from silver birch sap only. In each of the two groups there were glucose and fructose. No other carbohydrates were discovered. The hydrolysis had no influence on the results.

The PDF includes a summary in English.

Pätiälä, E-mail: rp@mm.unknown
Blomberg, E-mail: kb@mm.unknown
Paakkanen, E-mail: jp@mm.unknown
Piepponen, E-mail: sp@mm.unknown

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