The order of limonoid contents in varieties was as follows: Maxu grapefruit>Guanxi pummelo>Nanchong sweet orange>Jin sweet orange>Tangerine.

• 不同品种间类柠檬苦素含量依次为:邓肯葡萄柚>琯溪蜜柚>南充实生甜橙>锦橙>大红袍红桔。