I'm pleased to report 4% consolidated adjusted local currency revenue growth.
Our Flavors & Extracts Group reported 9% adjusted local currency revenue growth, more than 20% adjusted local currency operating profit growth, and 130 basis points adjusted operating profit margin improvement in the quarter.
Our Asia Pacific Group reported 5% adjusted local currency revenue growth and over 30% adjusted local currency operating profit growth.
Our balance sheet is strong, and our debt-to-EBITDA is now at 2.4, down from 2.9 a year ago.
The Flavors & Extracts Group had another strong quarter with 9% adjusted local currency revenue growth and 21% adjusted local currency profit growth.
Overall, the group's adjusted operating profit margin increased 130 basis points in the quarter compared to last year's first quarter.
We are well on track to achieve our 50 to 100 basis point operating profit margin improvement for the year and our mid-single digit revenue growth goal for the year.
The Color Group's adjusted operating profit was down approximately 13% in local currency in the first quarter.
Our Asia Pacific Group had another strong quarter with 5% adjusted local currency revenue growth and over 30% adjusted local currency profit growth.
Our first quarter GAAP diluted earnings per share was $0.75.
Included in these results are $3.1 million, or $0.07 per share, of costs related to the divestitures and the cost of the operational improvement plan.
In addition, our GAAP earnings per share this quarter include approximately $0.05 of earnings related to the results of the operations targeted for divestiture, which represents approximately $25.6 million of revenue in the quarter.
Last year's first quarter GAAP results include $10.9 million, or approximately $0.26 per share, of costs related to the divestitures.
In addition, our GAAP earnings per share in the first quarter of 2020 include $0.03 of earnings per share from the operations to be divested and approximately $36.6 million of revenue.
Excluding these items, consolidated adjusted revenue was $334.1 million, an increase of 4% in local currency compared to the first quarter of 2020.
This revenue growth was primarily a result of the Flavors & Extracts Group, which was up 8.9% in adjusted local currency, and the Asia Pacific Group, which was up 4.7% in adjusted local currency.
The Flavors & Extracts Group reported 21.2% adjusted local currency operating income growth, and the Asia Pacific Group reported 31.4% adjusted local currency operating income growth.
Adjusted local currency operating income in the Color Group was down 13.3%, primarily as a result of the personal care performance.
Our adjusted local currency EBITDA was up approximately 2% for the quarter.
We are executing on our capital expenditure plan and have identified a number of attractive investment opportunity projects, which will bring us to the top end of our previously stated capital range of $55 million to $65 million for the year.
During the first quarter, we bought back approximately $12 million of company stock.
Our GAAP earnings per share guidance calls for mid-to-high single-digit growth compared to our 2020 reported GAAP earnings per share of $2.59.
Our full-year guidance for 2021 includes approximately $0.30 of divestiture-related costs, operational improvement plan costs, and the impact of the businesses to be divested.
On an adjusted basis, our earnings per share guidance for the year calls for mid-single-digit local currency growth compared to our 2020 adjusted earnings per share of $2.79.
Our adjusted local currency EBITDA to grow at a mid-single digit rate.
And based on current exchange rates, we expect our earnings to benefit by approximately $0.10 due to currency for the year.

Summary:
Our Asia Pacific Group reported 5% adjusted local currency revenue growth and over 30% adjusted local currency operating profit growth.
Our Asia Pacific Group had another strong quarter with 5% adjusted local currency revenue growth and over 30% adjusted local currency profit growth.
Our first quarter GAAP diluted earnings per share was $0.75.
Our GAAP earnings per share guidance calls for mid-to-high single-digit growth compared to our 2020 reported GAAP earnings per share of $2.59.
Our adjusted local currency EBITDA to grow at a mid-single digit rate.
And based on current exchange rates, we expect our earnings to benefit by approximately $0.10 due to currency for the year.