On the analysis of triacylglycerol (TG) from the kernels of Acanthopanax sessiliflorus by reversed phase-HPLC, it was separated into three main fractions of PN 44, 46 and 48, according to partition number (PN). On the contrary, it could be clearly classified into seven fractions of SMM, MMM, SMD, MMD, SDD, MDD and MDT by silver ion-HPLC by the number of double bond in the acyl chains of TG species. But resolution of so-called critical pairs of TG molecular species such as molecular pairs of PeLL [C18:1Ω12/(C18:2Ω6)2] and OLL [C18:1Ω9/(C18:2Ω6)2] and OOL [(C18:1Ω9)2/C18:2Ω6], and PePeL [(C18:2Ω12)2/C18:1Ω6] was not achieved (Pe; petroselinic acid, L; linoleic acid, O; oleic acid). On the other hand, TG extracted from Aralia continentalis kernels were also fractionated into seven groups of SSM, SMM, MMM, SMD, MMD, SDD and MDD (S; saturated acid, M; monoenoic acid, D; dienoic acid) by silver ion-HPLC, although it's were classified into three groups of PN 44, 46 and 48 by reversed phase-HPLC. The fractions of SMM, MMM, MMD and MDD were divided into two subfractions, respectively; the fractions of SMM, MMM, MMD and MDD were resolved into the subfraction of PPe/Pe and POO (critical pairs from each other), that of Pe/Pe/Pe and OOO, that of Pe/Pe/L and OOL, and that of Pe/L/L and OLL.

Using the Daeduk Radio Telescope, we have observed J = 1 → 0 transitions of 1 12 C O , 13 C O a n d C 18 O toward OMC-l. The column densities of 1 \~ 5 × 10 17 c m − 2 a n d 1 \~ 3 × 10 16 c m − 2 have been derived, for 13 C O and C 18 O , respectively, in the 11 ′ × 11 ′ region centered at Orion - KL. The double isotope ratio [ 13 C O ] / [ C 18 O ] was found to be larger than the cosmic abundance ratio by factors of 2 \~ 10 which may result from the chemical fractionation effect.

Rapeseed (Brassica napus L.) oil with high oleic acid content is of great interest for both food and non-food uses. The ‘Tamla’ variety, characterized by oleic acid content of approximately 69%, was treated with 1% ethyl methane sulfonate (EMS) to induce mutations in the fatty acid biosynthesis pathway. M1 plants were selfed and subsequent generations (M2, M3, and M4 mutants) were analyzed to identify mutants having increased levels of oleic acid. M2 mutants showed oleic acid content ranging from 13.5% to 76.9% with some mutants (TR-458 and TR-544) having up to 74.7% and 76.9% oleic acid, which was an increase of nearly 5% and 7%, respectively, compared to untreated cv ‘Tamla’. We selected two M3 mutants with >75% oleic acid content. One mutant (TR-458-2) had increased oleic acid (75.9%) and decreased linoleic acid (12.5%) and linolenic acid (4.4%) contents. The other (TR-544-1) showed increased oleic acid content (75.7%) and decreased linoleic acid (13.5%) and linolenic acid (3.3%) contents. The accumulation or reduction of oleic acid content in the selected M4 mutants was also accompanied by a simultaneous decrease or increase in linoleic and linolenic acid contents. The high-oleic lines could be utilized further in breeding programs for improvement of rapeseed oil quality.